1981 GMC K1500 Exhaust Parts

Below you will find various in-demand GMC Exhaust Parts, components and accessories for your 1981 K1500. Advance Auto Parts has popular K1500 parts like Exhaust Pipes, Exhaust Manifold and Headers, Exhaust Fittings and more. You’ll also find aftermarket and OEM Exhaust Parts for other K1500 model years including 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 and more. Select a category of 1981 GMC K1500 Exhaust Parts below and start saving instantly.

Popular 1981 GMC K1500 Exhaust Parts Categories

Exhaust Manifold and Headers

Exhaust Y Pipes

Mufflers

Catalytic Converters

Exhaust Manifold and Header Hardware

Catalytic Converter Gaskets

Exhaust System Kits

Exhaust Pipes

Exhaust Hangers and Hardware

Exhaust Manifold Gaskets

Exhaust Clamps

Exhaust Pipe and Flange Gaskets

Exhaust Chrome and Stainless Tips

Essential Exhaust Parts for 1981 GMC K1500s

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$241.99

Flowmaster 49 state direct fit catalytic converters are available for a variety of popular applications. These stainless steel converters meet or exceed USEPA standards and include a 25,000 mile emissions, and 50,000 mile/5 year exterior casing warranty.

Product Features:

Available for a variety of Direct-Fit applications
Meets or exceeds all USEPA 49-state requirements
25,000 mile internal components emissions warranty
50,000 mile/5-year warranty on exterior casings
Made in the USA

from

$479.99

Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state┐s aftermarket converter regulations.
SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation

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$135.99

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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$252.99

Product Features:

Ideal For Connecting Headers
Use With FLOWTECH Headers

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$20.99

Complete your exhaust repair with Walker gaskets and 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
HEAT RESISTANT — Designed to resist heat for long-lasting performance
PREMIUM MATERIALS — Made from high-quality materials for durability and long life
ENGINEERING EXPERTISE — Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EASIER TO INSTALL — Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

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$15.82

Exh. Man. to Pipe Ga

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$6.29

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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$17.29

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

from

$85.99

Product Features:

Show Quality Chrome Platinum
Durable Black Finish
Can Be Welded Or Clamped
Complete The System
Glass-Packed Resonators

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$18.49

BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:

Designed to facilitate hassle-free exhaust repair
Precise fitment
Manufactured from quality materials to ensure maximum durability
Designed for a leak free connection
OE structure and design
Built to OEM specifications
Secure gas-tight connection

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$11.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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

from

$47.99

Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:

12 per Package
Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
410 stainless steel
Minimum 180,000 PSI tensile strength
24 equally spaced clockwise teeth

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$89.99

Vibe Lock Header Bolt Kit

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$214.99

Give your Chevrolet or GMC C1500, C2500, K1500 or K2500’s exhaust system an upgrade with a DynoMax Super Turbo single 2.5-in. cat-back exhaust system. Features a DynoMax Super Turbo muffler that channels exhaust flow and reduces turbulence and fiberglass matting that absorbs unwanted interior resonance for a mellow tone.

Product Features:

COMPATIBILITY — Designed for 1988-1993 Chevrolet and GMC C1500, C2500, K1500 and K2500; 117.5-in. and 131.5-in. wheelbases; see product information for compatibility and engine specs
COMPLETE SOLUTION — Includes DynoMax Super Turbo muffler, pipes, brackets and clamps
EASY TO INSTALL — Direct-fit pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesn¿t require specialized fabrication and/or welding
EASY TO INSTALL — Direct-fit pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesn┐t require specialized fabrication and/or welding
IMPROVED FLOW CAPACITY — Aluminized steel tubing with mandrel bends improves flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
PRECISION DESIGN — Exclusive flow director technology channels exhaust flow and reduces turbulence on most applications; dyno proven to flow up to 425 SCFM
PREMIUM PERFORMANCE — Large flow tubes improve exhaust flow and reduce backpressure
ENGINEERED TO LAST¿–¿Aluminized-steel muffler reduces corrosion and internal drainage system reduces moisture collection
ENGINEERED TO LAST┐–┐Aluminized-steel muffler reduces corrosion and internal drainage system reduces moisture collection
SPECS — 2.5-in. straight cut oval tail pipe

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$209.99

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

Product Features:

COMPATIBILITY — Designed for a variety of full-size 1973-89 GMC 4WD trucks and Chevrolet 4WD SUVs; see product information for compatibility and engine spec
BUILD IT YOURSELF — Design and custom fabricate your own exhaust system with this kit that attaches to OE manifolds
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; tailpipes exit each side of vehicle behind rear tires
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
PREMIUM MATERIALSÿ–ÿMade 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

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$74.99

Made from quality materials for durability, DynoMax® pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:

IMPROVED FLOW CAPACITY — Mandrel bends (where applicable) improve flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
DESIGNED TO PERFORM — Fixture checked to ensure a precise fit for quick and easy installation
AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
PREMIUM MATERIALS – Made from aluminized steel for durability and long life
BETTER TOGETHER — Use premium DynoMax® accessories when installing DynoMax mufflers and exhaust systems for a complete performance exhaust system upgrade

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$73.99

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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$37.69

Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.

Product Features:

Manufactured from high-temperature steel core/graphite faced exhaust material
Expanded steel core provides stability and maximum torque retention to eliminate gasket failure
Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
Conforms to and seals minor surface irregularities
Can be trimmed if necessary for modified port applications
For OE replacement, high performance street, drag race and oval track use
Anti-Stick Properties
Easy Removal For Disassembly

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$42.49

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:

Reusable header or exhaust manifold gasket set
Reusable header, exhaust manifold and collector flange gaskets
Manufactured from “dead soft” aluminum layers – .125″ thick
Conforms to and seals surface irregularities (warp
Will not shrink deteriorate or blow out
Conforms easily to surface irregularities (warped flanges)
Compresses to .060 creates 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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$237.99

Exhaust Manifold/Header

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$149.99

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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$399.99

Product Features:

Bolt On Quickly And Easily
Top Performance/Clean Machine
Increased Efficiency
Leak Free Seal
Connects To Exhaust Head Pipe
Complete With Premium Gaskets
16-Gauge Tubing For Durability

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$130.99

Product Features:

Made From Aluminized Case
Rust And Corrosion Protection
Stronger Seams Prevent Blow Out
Provides More Horsepower
Max Flow In Either Direction
Powerful Sound With No Resonance
Limited Lifetime Warranty

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$169.99

The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

Product Features:

CORROSION RESISTANT STAINLESS STEEL — The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
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
PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on

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$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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$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

from

$2.49

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

from

$85.99

Exhaust Clamp

Upgrade your 1981 GMC K1500 with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 1981 GMC K1500, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Exhaust Parts are key to keeping your K1500 functioning at its best. At Advance Auto Parts, we offer a wide selection of 79 Exhaust Parts for the 1981 GMC K1500, designed to meet your needs without breaking the bank. From Exhaust Pipe 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 GMC K1500 at great prices. Our Exhaust Parts inventory for this model ranges from just $1.99 to $956.99, with an average price of $133.71. Our 79 Exhaust Parts in stock come from 14 trusted brands, so you’re sure to find the right part for your 1981 GMC K1500 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 GMC K1500, we stock popular OEM and aftermarket Exhaust Parts from top names like FELPRO, Dorman, Flowtech, and more. FELPRO Exhaust Parts start at just $2.99 and boast an impressive 5 stars average rating from customers. Dorman and Flowtech also bring quality to the table, with Exhaust Parts available starting at $6.29, and at an average 4 stars rating. With 223 customer reviews and counting, our 1981 GMC K1500 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 GMC K1500 is always ready to roll. We’re committed to providing you with everything you need to keep your K1500 in top shape, all in one place. Start shopping confidently below for your 1981 GMC K1500!

Best-Selling Exhaust Pipes for 1981 GMC K1500s

Enhance the driving experience in your GMC with 7 quality Exhaust Pipe components, starting at $2.99.

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from

$5.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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

from

$4.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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

from

$178.99

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

from

$2.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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

from

$75.99

HEADER FLT BLOCK HUGGER

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$2.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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

from

$15.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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

Most Popular 1981 GMC K1500 Exhaust Manifold and Headers

Customize your GMC with 20 Exhaust Manifold and Headers products like Exhaust Manifold and Headers and Exhaust Manifold and Header Hardware, all priced under $956.99.

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from

$166.99

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

from

$298.99

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

from

$226.99

Product Features:

Fuel Economy From The Engine
Leak Test For Max Performance
Mandrel-Formed Power Plenum
Leakproof O-Ringed Port Seals
Include All Mounting Hardware

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$99.99

Manifold/Header

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$41.99

Made of high quality stainless steel. These bolts will brighten up your hot rod, or improve the looks of your race car.

Product Features:

Bright Ball Burnish Finish
Made From 304 Stainless
Compact Hex Head Is Ideal Where Space Is Limited
12 Per Set
Resist corrosion and provides a clean professional appearance

from

$232.99

Product Features:

Fuel Economy From The Engine
Leak Test For Max Performance
Mandrel-Formed Power Plenum
Leakproof O-Ringed Port Seals
Include All Mounting Hardware

from

$40.99

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

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

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$26.99

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

from

$47.99

12 per Package
Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
410 stainless steel
Minimum 180,000 PSI tensile strength
24 equally spaced clockwise teeth

from

$329.99

Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r

Product Features:

Patriot Exhaust H8049 1 3/4″ Header Chevrolet Truck Small Block Chevrolet 67-87 Raw
Patriot offers headers for many applications at prices you can afford.

from

$24.99

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

from

$956.99

JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:

JBA Performance Exhaust 1830S-6JT 1 5/8″ Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Titanium Ceramic
Mandrel bent stainless steel tube

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$956.99

JBA Performance Exhaust 1830S-6JS 1 5/8″ Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic
Mandrel bent stainless steel tube

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$809.99

JBA Performance Exhaust 1830S-6 1 5/8″ Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor
Mandrel bent stainless steel tube

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$642.99

ExhstHdr

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$635.99

High Performance
Affordable
Durable 16 Gauge Material
Welds Easier
Lasts Longer
Heat Cured
High Heat Resistant

from

$89.99

Vibe Lock Header Bolt Kit

from

$89.99

Vibe-Lock Bolt

from

$26.99

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

from

$19.99

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

Top Picks for 1981 GMC K1500 Exhaust Fittings

Upgrade GMC K1500s with top-quality Exhaust Fittings parts, including 3 OEM and aftermarket selections for your 1981 model.

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from

$8.99

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

from

$2.49

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

from

$1.99

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

In-Demand Exhaust Hangers for 1981 GMC K1500s

Select from 7 premium Exhaust Hangers parts for your 1981 GMC K1500, with prices ranging from $6.29 to $11.29.

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from

$9.99

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 long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$11.29

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

from

$6.49

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

from

$6.29

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

from

$10.49

Complete your exhaust repair with Walker exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:

KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
OE DESIGN — Designed with OE-style features for easy installation
AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
PREMIUM MATERIALS — Made from quality steel for durability and long life
BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

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$9.99

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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$11.29

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

Most Sold 1981 GMC K1500 Exhaust Mufflers

Explore our best-selling GMC parts for the 1981 K1500 among 10 OEM and aftermarket options starting from $58.99.

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$62.99

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$62.99

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$81.99

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/or 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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$94.99

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/or 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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$77.99

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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$116.99

CORROSION RESISTANT STAINLESS STEEL — The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
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
PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on

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$133.99

The Super 40 features Flowmaster’s Delta Flow technology. It’s larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

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$72.99

This BRExhaust replacement exhaust is engineered based on the original OEM design to ensure reliability, durability and performance. The ease of installation will save you time and effort, getting you back out on the road sooner. Each muffler features thicker hangers for added strength and fully welded, perforated tubes to guarantee a long service life.

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$58.99

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$58.99

Top-Rated Exhaust Parts Brands For Your 1981 GMC K1500

Shop for the best-rated brands offering Exhaust Parts and other products for your 1981 GMC K1500s. Below you’ll find some of our best rated Exhaust Parts from FELPRO, Dorman, and Flowtech, and more. Exhaust Parts from these brands that fit a 1981 K1500 start at just $2.99 and are rated as high as 5 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular FELPRO 1981 GMC K1500 Exhaust Parts

When it comes to maintaining or upgrading your 1981 GMC K1500, using quality Exhaust Parts is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Exhaust Parts, specifically designed for the 1981 GMC K1500. With over 6 FELPRO brand Exhaust Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $2.99, with an average price of just $8.47. Plus, with over 48 customer reviews and an average rating of 5 stars, you can trust that our FELPRO 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.

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$19.99

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Exhaust Manifold Gasket Set

“Easy to install with slots for manifold bolts , just slide them in”

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$2.99

This product is not rated

Exhaust Pipe Flange Gasket

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$15.29

This product is not rated

Exhaust Pipe Flange Gasket

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Popular Dorman 1981 GMC K1500 Exhaust Parts

Dorman auto parts is one of the highest quality Exhaust Part brands in the market. Any 1981 GMC K1500 owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 1981 K1500, Advance Auto Parts carries a full inventory of 7 Dorman Exhaust Parts. Plus you will be keeping your GMC in peak condition while saving money because prices on these Dorman Exhaust Parts range from $6.29 to $166.99, plus, with more than 15 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Exhaust Parts below will deliver on both quality and value.

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$6.29

This product is not rated

Exhaust Stud Kit – 3/8-16 x 2-1/2 In.

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$11.29

This product is not rated

Exhaust Stud Kit – 3/8-16 x 3-5/16 In.

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$9.99

This product is not rated

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

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FAQs for 1981 GMC K1500 Exhaust Parts

Which Exhaust Parts are best-sellers for 1981 GMC K1500s?

Out of 79 Exhaust Parts that fit 1981 GMC K1500s, the following parts are the top sellers:

Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In. (9110161) – $11.29
High-Performance Mandrel-Bent Headers with Leakproof O-Ring Seals (6310214) – $226.99
Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing (5020859) – $27.49

What’s the price range for 1981 GMC K1500 Exhaust Parts?

Exhaust Part prices for the 1981 GMC K1500 start at $1.99 and go up to $956.99 for the most premium parts.

What’s the average price of a Exhaust Part for a 1981 GMC K1500?

The average price for Exhaust Parts for the 1981 GMC K1500 is $133.71. 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 GMC K1500 model years?

Yes, we currently carry Exhaust Parts for 19 model years of GMC K1500s between 1979 and 1999. Exhaust Parts are bought most frequently for the following model years: 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, and 1991.

What are the cheapest Exhaust Parts for my 1981 GMC K1500?

The cheapest 1981 GMC K1500 Exhaust Parts we carry in stock are:

Exhaust Clamp (11012223) – $1.99
Exhaust Clamp (11012137) – $2.49
Exhaust Pipe Flange Gasket (5185076) – $2.99
Exhaust Pipe Flange Gasket (5185157) – $2.99
Exhaust Pipe Flange Gasket (5185025) – $4.29

What are the top-rated Exhaust Parts that fit the 1981 GMC K1500?

Out of 223 reviews by customers, our 1981 GMC K1500 Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 1981 GMC K1500 and their top-rated products:

Exhaust Gaskets
- Exhaust Manifold Gasket Set (5184266) – $19.99
- Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing (5020859) – $27.49
Exhaust Tips
- Exhaust Manifold Gasket Set (5184266) – $19.99
- Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing (5020859) – $27.49

What types of Exhaust Parts do you sell for my 1981 GMC K1500?

As of 2/5/25, these are some of the most in-demand types of Exhaust Parts for a 1981 GMC K1500:

Can I get help with 1981 GMC K1500 Exhaust Part orders?

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

What is your return policy for GMC K1500 Exhaust Parts?

Advance Auto Parts keeps returns simple. For new GMC K1500 Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1981 GMC K1500 Exhaust Parts

Flowmaster Inc. – Catalytic Converter – Direct Fit – 3.00 in. Inlet/Outlet – 49 State (Part No.2010025)

Walker – CalCat CARB Universal Catalytic Converter 3" Inlet (ID) 3" Outlet (ID) (Part No.80907)

Walker – Exhaust Y Pipe 2.5" Outlet (OD) (Part No.40296)

Flowtech – Y-Pipes (Part No.11504YFLT)

Walker – Exhaust Pipe Flange Gasket (Part No.31520)

Mahle – Exh. Man. to Pipe Ga (Part No.H4003205941MAH)

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

Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03133)

Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

BRExhaust – Exhaust Flange Gasket (Part No.256-1059)

Felpro – Exhaust Pipe Flange Gasket (Part No.61561)

Mr. Gasket – Exhsthdrbolt (Part No.2230G)

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

Dynomax – Single – 2.5in Cat-Back Exhaust System – Super Turbo Muffler: Aluminized Steel (Part No.17450)

Dynomax – Dual Header Exhaust System Kit for Classic 4WD Trucks & SUVs (Part No.89003)

Dynomax – 45212 Exhaust Tail Pipe (Part No.45212)

Walker – Exhaust Crossover Pipe (Part No.53647)

Mr. Gasket – Ultra Seal: Exhaust Gasket Set (Part No.5904)

Mr. Gasket – Exhsthdrgskt (Part No.7408G)

Flowtech – Exhaust Manifold/Header (Part No.11530FLT)

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-573)

Flowtech – Shorty; Smog Headers (Part No.91832-1FLT)

Flowtech – Afterburner Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.50370FLT)

Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2" Inlet (ID) 2.75" Outlet (OD) (Part No.21282)

Walker – Sound Solution Muffler (Part No.18746)

Walker – Exhaust Clamp (Part No.35337)

Walker – Exhaust Clamp (Part No.35336)

Dorman – Exhaust Clamp (Part No.H8020683618DOR)

Felpro – Exhaust Pipe Flange Gasket (Part No.60985)

Felpro – Exhaust Pipe Flange Gasket (Part No.60986)

Walker – Exhaust Y Pipe 2.5" Outlet (OD) (Part No.40412)

Felpro – Exhaust Pipe Flange Gasket (Part No.8194)

Flowtech – HEADER FLT BLOCK HUGGER (Part No.10010FLT)

Felpro – Exhaust Pipe Flange Gasket (Part No.9587)

Felpro – Exhaust Pipe Flange Gasket (Part No.60556)

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-245)

Hooker Headers – LS1 Swap Headers for 66-72 Chevelle, El Camino & More (Part No.2453HKR)

Flowtech – High-Performance Mandrel-Bent Headers with Leakproof O-Ring Seals (Part No.11500FLT)

Dynomax – Manifold/Header (Part No.85003)

Mr. Gasket – Header Bolt Set (Part No.2210G)

Flowtech – Standard Header (Part No.11506FLT)

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)

ARP Auto Racing – For Use With Chevy Small Block, 3/8 – 16" Thread Size, .75" L, Natural, Set Of 12 (Part No.400-1201)

Mr. Gasket – Exhsthdrbolt (Part No.2230G)

Patriot Exhaust – H8049 1 3/4" Header Chevrolet Truck Small Block Chevrolet 67-87 Raw (Part No.H8049)

ARP Auto Racing – 0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1101)

JBA Performance – 1830S-6JT 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Titanium Ceramic (Part No.1830S-6JT)

JBA Performance – 1830S-6JS 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic (Part No.1830S-6JS)

JBA Performance – 1830S-6 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor (Part No.1830S-6)

Hooker Headers – ExhstHdr (Part No.2301HKR)

Hooker Headers – Competition Header (Part No.2453-1HKR)

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

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

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)

ARP Auto Racing – For Use With Chevy Small Block, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1201)

Walker – Exhaust Clamp (Part No.35337)

Walker – Exhaust Clamp (Part No.35336)

Walker – Exhaust Clamp (Part No.35335)

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

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)

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

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

Walker – Hanger Length 2.25 (Part No.35148)

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

Dorman – Help – Exhaust Stud Kit – 3/8-16 x 3-5/16 In. (Part No.03106)

Walker – Sound Solution Muffler (Part No.18746)

Walker – Sound Solution Muffler (Part No.18624)

Walker – SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD) (Part No.18274)

Walker – SoundFX Muffler, Direct Replacement, No Fabrication Needed (Part No.18191)

Walker – SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD) (Part No.18124)

Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21910)

Flowmaster Inc. – Super 40 Muffler – 2.25 Offset In / 2.25 Center Out – Aggressive Sound (Part No.952446)

BRExhaust – Premium Universal Muffler (Part No.100-5086)

BRExhaust – Premium Universal Muffler (Part No.101-1170)

BRExhaust – Premium Universal Muffler (Part No.101-1193)