1981 Buick Regal Exhaust Parts

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Essential Exhaust Parts for 1981 Buick Regals

Walker – Exhaust Pipe 2" Inlet (OD) 2" Outlet (OD) (Part No.55305)

Exhaust Pipe 2" Inlet (OD) 2" Outlet (OD)

from

$71.99
Made from aluminized steel for durability, Walker premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:
  • RESISTS CORROSION – Durable aluminized steel construction for corrosion resistance and performance
  • EASY TO INSTALL – Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
  • OE-STYLE PERFORMANCE – Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information
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Flowtech – HEADER FLT BLOCK HUGGER (Part No.10010FLT)

HEADER FLT BLOCK HUGGER

from

$84.99
HEADER FLT BLOCK HUGGER

Felpro – Exhaust Manifold Gasket Set (Part No.MS 9275 B)

Exhaust Manifold Gasket Set

from

$20.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Contains all gaskets and seals to remove and replace exhaust manifold
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Mr. Gasket – Aluminum Exhaust Gaskets for Intense Heat Resistance (Part No.7402G)

Aluminum Exhaust Gaskets for Intense Heat Resistance

from

$49.99
Upgrade to Mr. Gasket Aluminum Layered Header Gaskets and eliminate blown exhaust gaskets forever. They conform to warped and damaged surfaces to create an airtight, leak-proof seal and will not shrink or deteriorate EVER.

Product Features:
  • Withstands Intense Exhaust Heat
  • Reusable header, exhaust manifold and collector flange gaskets
  • Manufactured from “dead soft” aluminum layers – .125″ thick
  • Easy Removal For Disassembly
  • Conforms easily to surface irregularities (warped flanges)
  • Compresses down to 0.060″ to create a tight leak-proof seal
  • Will not shrink, deteriorate, or blow out- eliminating gasket leaks
  • For high performance street, drag race and oval track use
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Walker – Exhaust Clamp (Part No.35336)

Exhaust Clamp

from

$2.99
Complete your exhaust repair with an Exhaust Mate U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS – Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust Clamp (Part No.35337)

Exhaust Clamp

from

$8.99
Complete your exhaust repair with an Exhaust Mate U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS – Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
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MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.3322305)

Universal California Grade CARB Compliant Catalytic Converter

from

$561.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322305. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
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MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.94015)

Universal Standard Grade Federal / EPA Compliant Catalytic Converter

from

$126.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94015. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.

Product Features:
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Durable 308 stainless steel MIG welds
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
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Walker – SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) (Part No.18820)

SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD)

from

$131.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
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Walker – Sound Solution Exhaust Muffler (Part No.18759)

Sound Solution Exhaust Muffler

from

$62.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
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Dorman – Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in (Part No.29201)

Double Ended Stud - 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in

from

$10.49
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and Length service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)

Double Ended Stud Kit - 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in

from

$10.99
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and Length service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Exhaust Manifold Stud Kit – 3/8-16 x 3-1/4 In. (Part No.03113)

Exhaust Manifold Stud Kit - 3/8-16 x 3-1/4 In.

from

$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Walker – Exhaust Flange (Part No.31882)

Exhaust Flange

from

$17.49
Complete your exhaust repair with Walker flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
  • OE-STYLE DESIGN – Designed with OE-style features for easy installation
  • QUALITY MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust Flange (Part No.31865)

Exhaust Flange

from

$15.49
Complete your exhaust repair with Walker flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
  • OE-STYLE DESIGN – Designed with OE-style features for easy installation
  • QUALITY MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust Flange (Part No.31900)

Exhaust Flange

from

$11.99
Complete your exhaust repair with Walker flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
  • OE-STYLE DESIGN – Designed with OE-style features for easy installation
  • QUALITY MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Catalytic Converter Air Tube (Part No.35574)

Catalytic Converter Air Tube

from

$87.99
Complete your exhaust repair with a Walker air intake tubing. Designed to work seamlessly with OE and Walker rubber intake parts, Walker hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CUSTOMIZABLE FIT – Universal fit for installation flexibility
  • COMPATIBILITY – Features OD-OD sized ends designed to work seamlessly with OE and Walker rubber intake parts
  • QUALITY MATERIALS – Made from aluminum for durability and long life
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • New Walker accessories help to ensure effective exhaust repairs
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Taylor Gaskets – Vibe Lock Header Bolt Kit (Part No.310004)

Vibe Lock Header Bolt Kit

from

$89.99
Vibe Lock Header Bolt Kit

Taylor Gaskets – Vibe-Lock Bolt (Part No.310016)

Vibe-Lock Bolt

from

$89.99
Vibe-Lock Bolt

Hooker BlackHeart – Hooker BlackHeart LS Swap Exhaust Manifolds – Stainless Steel – Polished Finish (Part No.8503-1HKR)

Hooker BlackHeart LS Swap Exhaust Manifolds - Stainless Steel - Polished Finish

from

$899.99
Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Polished finish, but also available in natural cast finish for a factory appearance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
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Hooker Headers – Competition Header (Part No.2451-2HKR)

Competition Header

from

$921.99
LS1 full length engine swap header fits 66-72 Chevelle, El Camino, Monte Carlo and Sprint applications. Hooker has a complete line of engine swap headers, front frame mounts and transmission mounts for popular engine swaps. Available for Chevy, Chrysler and Ford small block and big block engines. Hooker swap headers and mounts are designed to provide an exact fit when used together. Hooker swap headers add the extra horsepower and torque the serious enthusiast demands. Hooker Headers are the best single improvement you can make.

Product Features:
  • High Performance
  • Affordable
  • Durable 16 Gauge Material
  • Welds Easier
  • Lasts Longer
  • Heat Cured
  • High Heat Resistant
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Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-197)

Direct Fit Exhaust Manifold: without Heat Shield

from

$166.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
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Dynomax – Exhaust System Kit (Part No.89017)

Exhaust System Kit

from

$277.99
Give your vintage vehicle’s exhaust system an upgrade with a DynoMax dual header kit. Designed to attach with OE headers, it features a special reducer that allows for a variety of mounting options.

Product Features:
  • COMPATIBILITY : Designed for 1978-1987 midsize sedans such as Oldsmobile Cutlass, Chevrolet Monte Carlo, Buick Regal and Pontiac Grand Prix; see product information for compatibility and engine specifications
  • BUILD IT YOURSELF : Design and custom fabricate your own exhaust system with this kit that attaches to OE headers
  • FLEXIBLE MOUNTING : Special reducer design allows for a variety of mounting options
  • IMPROVED FLOW CAPACITY : Smooth bends improve flow capacity over traditional bends
  • SPECS : Extra-long tailpipes with side exits with a full 2.25-in. diameter; tail pipes exit on each side of vehicle at rear bumper
  • COMPLETE SOLUTION : Includes all the necessary clamps, hangers, flanges, gaskets, mounting hardware, intermediate, extension and tail pipes
  • PREMIUM MATERIALS: Made from quality aluminized steel for durability and long life
  • BETTER TOGETHER : Complete your system with premium DynoMax mufflers and DynoMax accessories for a complete performance exhaust system
  • WARNING : Not legal for use on pollution-controlled motor vehicles; headers are for racing use only and not intended or applicable for highway use
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Hooker Headers – Super Competition Cat-Back System (Part No.16810HKR)

Super Competition Cat-Back System

from

$767.99
Super Competition Cat-Back System Black Finish Mufflers with Aluminized Tubing

Product Features:
  • Exit At Stock Locations
  • Mandrel Bent Not Press Bent
  • Mandrel Bent Not Press Bent
  • Maximum Flow
  • Uses Existing Stock Hangers
  • Large Diameter 16 Ga. Aluminum Tubing
  • Low Back Pressure and Long Life
  • Easy Installation
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MagnaFlow – Street Series Exhaust System Kit (Part No.15498)

Street Series Exhaust System Kit

from

$1231.99
The MagnaFlow 2011-2017 Buick Regal Street Series Cat-Back Performance Exhaust System brings out the personality of your 2.0L 2011-2017 Buick Regal with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Dual Split Rear exit with 5.5in. Polished Welded-On Double Wall Straight Cut Rolled Edge tips, this Buick Regal exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Buick Regal’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15498 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15498 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.

Product Features:
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
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Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$93.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
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Upgrade your 1981 Buick Regal with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 1981 Buick Regal, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Buick or enhancing its overall performance, Exhaust Parts are key to keeping your Regal functioning at its best. At Advance Auto Parts, we offer a wide selection of 57 Exhaust Parts for the 1981 Buick Regal, designed to meet your needs without breaking the bank. From Exhaust Hanger replacements to Exhaust Manifold and Headers upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Exhaust Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Exhaust Parts for your 1981 Buick Regal at great prices. Our Exhaust Parts inventory for this model ranges from just $2.99 to $1,407.00, with an average price of $343.31. Our 57 Exhaust Parts in stock come from 11 trusted brands, so you’re sure to find the right part for your 1981 Buick Regal without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1981 Buick Regal, we stock popular OEM and aftermarket Exhaust Parts from top names like Flowmaster Inc., Dorman, Walker, and more. Flowmaster Inc. Exhaust Parts start at just $101.99 and boast an impressive 4.4 stars average rating from customers. Dorman and Walker also bring quality to the table, with Exhaust Parts available starting at $10.49, and at an average 4.2 stars rating. With 334 customer reviews and counting, our 1981 Buick Regal Exhaust Parts have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Exhaust Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1981 Buick Regal is always ready to roll. We’re committed to providing you with everything you need to keep your Regal in top shape, all in one place. Start shopping confidently below for your 1981 Buick Regal!

Best-Selling Exhaust Hangers for 1981 Buick Regals

Enhance the driving experience in your Buick with 6 quality Exhaust Hanger components, starting at $6.99.

Dorman – Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in (Part No.29201)

Double Ended Stud - 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in

from

$10.49
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and Length service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Help – Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In. (Part No.03147)

Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In.

from

$11.49
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Help – Exhaust Manifold Stud Kit – 3/8-16 x 3-1/4 In. (Part No.03113)

Exhaust Manifold Stud Kit - 3/8-16 x 3-1/4 In.

from

$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Help – Exhaust Stud Kit – 3/8-16 x 2-1/2 In. (Part No.03112)

Exhaust Stud Kit - 3/8-16 x 2-1/2 In.

from

$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)

Double Ended Stud Kit - 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in

from

$10.99
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and Length service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Help – Exhaust Flange Spring (Part No.03084)

Exhaust Flange Spring

from

$7.99
Designed for an exact fit, our Exhaust Spring provides you with the proper flange spring for replacing the manifold. Save time and energy by having the right hardware on hand when you need it.

Product Features:
  • Direct replacement – this exhaust spring matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this spring is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Most Popular 1981 Buick Regal Exhaust Manifold and Headers

Customize your Buick with 19 Exhaust Manifold and Headers products like Exhaust Manifold and Headers and Exhaust Manifold and Header Hardware, all priced under $956.99.

Walker – Catalytic Converter Air Tube (Part No.35574)

Catalytic Converter Air Tube

from

$87.99
Complete your exhaust repair with a Walker air intake tubing. Designed to work seamlessly with OE and Walker rubber intake parts, Walker hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CUSTOMIZABLE FIT – Universal fit for installation flexibility
  • COMPATIBILITY – Features OD-OD sized ends designed to work seamlessly with OE and Walker rubber intake parts
  • QUALITY MATERIALS – Made from aluminum for durability and long life
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • New Walker accessories help to ensure effective exhaust repairs
See More

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12 (Part No.400-1111)

For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12

from

$51.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
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ARP Auto Racing – For Use With Chevy Small Block, 3/8 – 16" Thread Size, .75" L, Natural, Set Of 12 (Part No.400-1201)

For Use With Chevy Small Block, 3/8 - 16" Thread Size, .75" L, Natural, Set Of 12

from

$33.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
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ARP Auto Racing – 0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1101)

0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12

from

$31.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • Set of 12
  • 0.75″ Overall Length
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Hooker BlackHeart – Hooker BlackHeart LT Swap Exhaust Manifolds – Stainless Steel – Polished Finish (Part No.BHS3117)

Hooker BlackHeart LT Swap Exhaust Manifolds - Stainless Steel - Polished Finish

from

$956.99
Product Features:
  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Polished finish for a standout appearance. Also available in natural cast finish.
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
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Hooker BlackHeart – Hooker BlackHeart LS Swap Exhaust Manifolds – Stainless Steel – Polished Finish (Part No.8503-1HKR)

Hooker BlackHeart LS Swap Exhaust Manifolds - Stainless Steel - Polished Finish

from

$899.99
Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Polished finish, but also available in natural cast finish for a factory appearance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
See More

Hooker BlackHeart – Hooker BlackHeart LS Swap Exhaust Manifolds – Black Ceramic Finish (Part No.8502-3HKR)

Hooker BlackHeart LS Swap Exhaust Manifolds - Black Ceramic Finish

from

$742.99
Product Features:
  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Black ceramic coating for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
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Hooker BlackHeart – Hooker BlackHeart LT Swap Exhaust Manifolds, Stainless Steel, Natural Cast (Part No.BHS3116)

Hooker BlackHeart LT Swap Exhaust Manifolds, Stainless Steel, Natural Cast

from

$731.99
Product Features:
  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Plain as-cast finish for a factory appearance. Also available in polished.
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
See More

Hooker Headers – ExhstHdr (Part No.2301HKR)

ExhstHdr

from

$716.99
ExhstHdr

Hooker BlackHeart – Hooker BlackHeart LT Swap Exhaust Manifolds – Silver Ceramic Finish (Part No.BHS517)

Hooker BlackHeart LT Swap Exhaust Manifolds - Silver Ceramic Finish

from

$674.99
Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
  • Patent Pending Design
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Hooker BlackHeart – Hooker BlackHeart LS Swap Exhaust Manifolds – Stainless Steel – Natural Cast (Part No.8503HKR)

Hooker BlackHeart LS Swap Exhaust Manifolds - Stainless Steel - Natural Cast

from

$674.99
Product Features:
  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Plain as-cast finish for a factory appearance. Also available in polished.
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
See More

Hooker BlackHeart – Hooker BlackHeart LT Swap Exhaust Manifolds – Black Ceramic Finish (Part No.BHS518)

Hooker BlackHeart LT Swap Exhaust Manifolds - Black Ceramic Finish

from

$596.99
Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
  • Patent Pending Design
See More

Flowtech – Flowtech LS Swap Exhaust Manifolds – Silver Ceramic Finish (Part No.31730-1FLT)

Flowtech LS Swap Exhaust Manifolds - Silver Ceramic Finish

from

$497.99
Product Features:
  • Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
  • Nickel plated steel mating flanges included (mating flange fasteners are not included)
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired, for an OE quality seal and fitment to emissions devices
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
See More

Hooker BlackHeart – Hooker BlackHeart LT Swap Exhaust Manifolds – Natural Cast Finish (Part No.BHS516)

Hooker BlackHeart LT Swap Exhaust Manifolds - Natural Cast Finish

from

$469.99
Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
  • Patent Pending Design
See More

Flowtech – Flowtech LS Swap Exhaust Manifolds – Black Ceramic Finish (Part No.31730-3FLT)

Flowtech LS Swap Exhaust Manifolds - Black Ceramic Finish

from

$404.99
Product Features:
  • Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
  • Nickel plated steel mating flanges included (mating flange fasteners are not included)
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired, for an OE quality seal and fitment to emissions devices
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
See More

Flowtech – Flowtech LS Swap Exhaust Manifolds – Natural Cast Finish (Part No.11730FLT)

Flowtech LS Swap Exhaust Manifolds - Natural Cast Finish

from

$292.99
Product Features:
  • Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
  • Nickel plated steel mating flanges included (mating flange fasteners are not included)
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired, for an original quality seal and fitment
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
See More

Taylor Gaskets – Vibe Lock Header Bolt Kit (Part No.310004)

Vibe Lock Header Bolt Kit

from

$89.99
Vibe Lock Header Bolt Kit

Taylor Gaskets – Vibe-Lock Bolt (Part No.310016)

Vibe-Lock Bolt

from

$89.99
Vibe-Lock Bolt

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 0.75"L, Hex Head, Natural Ss, Set Of 12 (Part No.400-1101)

For Use With Chevy Small Block, 3/8"-16, 0.75"L, Hex Head, Natural Ss, Set Of 12

from

$33.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • 0.75″ Underhead Length
  • Set of 12
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Top Picks for 1981 Buick Regal Exhaust Pipes

Upgrade Buick Regals with top-quality Exhaust Pipes parts, including 2 OEM and aftermarket selections for your 1981 model.

Walker – Exhaust Tail Pipe 2" Inlet (OD) 2" Outlet (OD) (Part No.43770)

Exhaust Tail Pipe 2" Inlet (OD) 2" Outlet (OD)

from

$38.49
Made from aluminized steel for durability, Walker premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:
  • RESISTS CORROSION – Durable aluminized steel construction for corrosion resistance and performance
  • EASY TO INSTALL – Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
  • OE-STYLE PERFORMANCE – Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information
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Flowmaster Inc. – Prebent Tailpipes – 2.50 in. Rear Exit – Pair (Part No.15817)

Prebent Tailpipes - 2.50 in. Rear Exit - Pair

from

$273.99
Prebent pipe kits. Flowmaster’s 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster.
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In-Demand Exhaust Fittings for 1981 Buick Regals

Select from 5 premium Exhaust Fittings parts for your 1981 Buick Regal, with prices ranging from $2.99 to $17.49.

Walker – Exhaust Flange (Part No.31882)

Exhaust Flange

from

$17.49
Complete your exhaust repair with Walker flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
  • OE-STYLE DESIGN – Designed with OE-style features for easy installation
  • QUALITY MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust Flange (Part No.31900)

Exhaust Flange

from

$11.99
Complete your exhaust repair with Walker flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
  • OE-STYLE DESIGN – Designed with OE-style features for easy installation
  • QUALITY MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
See More

Walker – Exhaust Clamp (Part No.35337)

Exhaust Clamp

from

$8.99
Complete your exhaust repair with an Exhaust Mate U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS – Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
See More

Walker – Exhaust Clamp (Part No.35336)

Exhaust Clamp

from

$2.99
Complete your exhaust repair with an Exhaust Mate U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS – Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
See More

Walker – Exhaust Clamp (Part No.35335)

Exhaust Clamp

from

$2.99
Complete your exhaust repair with an Exhaust Mate U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS – Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER – Use Walker accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
See More

Most Sold 1981 Buick Regal Exhaust Mufflers

Explore our best-selling Buick parts for the 1981 Regal among 14 OEM and aftermarket options starting from $58.99.

Flowmaster Inc. – Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842518)

Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$101.99
Super 10 Series 409S stainless steel – single chamber mufflers. Intended for customers who desire the loudest and most aggressive sound they can find. Because these mufflers are so aggressive, they are recommended only for off highway use and not for street driven vehicles. These mufflers utilize the same patented Delta Flow technology that is found in Flowmaster’s other Super series mufflers to deliver maximum performance. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.942553)

50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound

from

$173.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942548)

Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$137.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler we’ve ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42543)

40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$101.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Walker – Sound Solution Exhaust Muffler (Part No.18601)

Sound Solution Exhaust Muffler

from

$58.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.

Product Features:
  • Aluminized steel construction for corrosion resistance and durability
  • Mechanical interior joints for durability
  • Spun-locked heads for rupture resistance
  • Tube-and-partition style interior design
  • Universal mufflers may require modifications to complete installation
  • Spot welded bushings provide stability and system support
  • Some mufflers available with reinforced bracketed heads
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Walker – Sound Solution Exhaust Muffler (Part No.18607)

Sound Solution Exhaust Muffler

from

$63.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
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Walker – SoundFX Universal Exhaust Muffler 2" Inlet (ID) 2" Outlet (ID) (Part No.18101)

SoundFX Universal Exhaust Muffler 2" Inlet (ID) 2" Outlet (ID)

from

$78.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION : Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST : Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FLEXIBLE SOLUTION : Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND : Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER : Designed and tested to extend muffler life
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Walker – SoundFX Direct Fit Exhaust Muffler 2.25" Inlet (ID) 2" Outlet (ID) (Part No.18345)

SoundFX Direct Fit Exhaust Muffler 2.25" Inlet (ID) 2" Outlet (ID)

from

$71.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
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Walker – SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2" Outlet (ID) (Part No.18275)

SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2" Outlet (ID)

from

$71.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

Walker – SoundFX Universal Exhaust Muffler 2.25" Inlet (ID) 2" Outlet (ID) (Part No.18107)

SoundFX Universal Exhaust Muffler 2.25" Inlet (ID) 2" Outlet (ID)

from

$139.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION : Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST : Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FLEXIBLE SOLUTION : Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND : Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER : Designed and tested to extend muffler life
See More

Flowmaster Inc. – Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842543)

Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$168.99
This two chamber design incorporates Flowmaster’s patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942543)

40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$152.99
This two chamber design incorporates Flowmaster’s patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Hooker Headers – Mufflers (Part No.21644HKR)

Mufflers

from

$147.99
Mufflers

Flowmaster Inc. – Flowmaster Flow FX Muffler (Part No.71236)

Flowmaster Flow FX Muffler

from

$78.99
Flowmaster’s Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the “chambered” muffler sound. The interior features a large 3.00-inch “straight-through” stainless steel perforated core, surrounded with high-temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in either direction to best suit the vehicle application and offsets needed. Features include fully MIG-welded “bright” 409 stainless steel construction with the Flow FX logo embossed on both sides of the case. The Flow FX line of mufflers is perfect for the person looking for a show quality performance muffler at an economical price point and in a compact sized case.

Product Features:
  • Flowmaster quality
  • Straight through design
  • Moderate exterior performance tone
  • Durable fully welded 409S stainless steel case
See More

Top-Rated Exhaust Parts Brands For Your 1981 Buick Regal

Shop for the best-rated brands offering Exhaust Parts and other products for your 1981 Buick Regals. Below you’ll find some of our best rated Exhaust Parts from Flowmaster Inc., Dorman, and Walker, and more. Exhaust Parts from these brands that fit a 1981 Regal start at just $10.49 and are rated as high as 4.4 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular Flowmaster Inc. 1981 Buick Regal Exhaust Parts

When it comes to maintaining or upgrading your 1981 Buick Regal, using quality Exhaust Parts is essential to ensure durability and a perfect fit. Flowmaster Inc. ticks all of those boxes. We offer a wide selection of Flowmaster Inc. Exhaust Parts, specifically designed for the 1981 Buick Regal. With over 3 Flowmaster Inc. brand Exhaust Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $101.99, with an average price of just $137.99. Plus, with over 23 customer reviews and an average rating of 4.4 stars, you can trust that our Flowmaster Inc. Exhaust Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound
from $173.99
(1)
50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound
“Good price using my speed perks discount. Fast delivery had the parts in 4 days. It will be awhile before I install them but I know these flowmasters”
Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
from $137.99
(21)
Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
“Sounds amazing on my Jeep. Bought with speed perks and online coupon for in store pick up.”
Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
from $101.99
(1)
Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
“The product was perfect and was in excellent condition I love everything about the flowmaster super 10 series ,they sound great and give me the sound ”

Popular Dorman 1981 Buick Regal Exhaust Parts

Dorman auto parts is one of the highest quality Exhaust Part brands in the market. Any 1981 Buick Regal owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 1981 Regal, Advance Auto Parts carries a full inventory of 2 Dorman Exhaust Parts. Plus you will be keeping your Buick in peak condition while saving money because prices on these Dorman Exhaust Parts range from $10.49 to $11.49, plus, with more than 11 customer reviews and an impressive 4.2 stars average rating, you can be confident the Fram Exhaust Parts below will deliver on both quality and value.
Double Ended Stud - 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in
from $10.49
(1)
Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in
“Just like the original, you might want to tap the threads on the manifold.”
Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In.
from $11.49
(10)
Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In.
“This product is as advertised. Work perfectly”

FAQs for 1981 Buick Regal Exhaust Parts

Which Exhaust Parts are best-sellers for 1981 Buick Regals?

Out of 57 Exhaust Parts that fit 1981 Buick Regals, the following parts are the top sellers:

What’s the price range for 1981 Buick Regal Exhaust Parts?

Exhaust Part prices for the 1981 Buick Regal start at $2.99 and go up to $1,407.00 for the most premium parts.

What’s the average price of a Exhaust Part for a 1981 Buick Regal?

The average price for Exhaust Parts for the 1981 Buick Regal is $343.31. Keep in mind the variety of part types within our Exhaust Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust Parts for other Buick Regal model years?

Yes, we currently carry Exhaust Parts for 37 model years of Buick Regals between 1973 and 2017. Exhaust Parts are bought most frequently for the following model years: 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2004, and 2003.

What are the cheapest Exhaust Parts for my 1981 Buick Regal?

The cheapest 1981 Buick Regal Exhaust Parts we carry in stock are:

What are the top-rated Exhaust Parts that fit the 1981 Buick Regal?

Out of 334 reviews by customers, our 1981 Buick Regal Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 1981 Buick Regal and their top-rated products:

What types of Exhaust Parts do you sell for my 1981 Buick Regal?

As of 3/1/26, these are some of the most in-demand types of Exhaust Parts for a 1981 Buick Regal:

Can I get help with 1981 Buick Regal Exhaust Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Buick Exhaust Parts and more.

What is your return policy for Buick Regal Exhaust Parts?

Advance Auto Parts keeps returns simple. For new Buick Regal Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.