2003 Buick Regal Exhaust Parts
Find Your Specific 2003 Buick Regal Exhaust Parts
Below you will find various in-demand Buick Exhaust Parts, components and accessories for your 2003 Regal. Advance Auto Parts has popular Regal parts like Exhaust Pipes, Exhaust Fittings, Exhaust Manifold and Headers and more. You’ll also find aftermarket and OEM Exhaust Parts for other Regal model years including
2002,
2004,
2011,
2012,
2013,
2014,
2015,
2016,
2017 and more. Select a category of 2003 Buick Regal Exhaust Parts below and start saving instantly.
Popular 2003 Buick Regal Exhaust Parts Categories
Essential Exhaust Parts for 2003 Buick Regals
Mr. Gasket – Copper Seal: Exhaust Gasket Set (Part No.7152G)
from
$71.99
Mr. Gasket CopperSEAL Header Gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications.
Product Features:
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Product Features:
- Manufactured from ¿Dead Soft¿ (solid) .043″ thick copper material
- Manufactured from ┐Dead Soft┐ (solid) .043″ thick copper material
- .051″ embossment around each exhaust port to seal irregular surfaces. Total gasket thickness .094″
- Provides excellent sealing and durability
- Conforms to and seals minor surface irregularities
- For high performance street, drag race, oval track and turbocharged (extreme heat) applications
Taylor Gaskets – Header Gasket (Part No.66088)
from
$29.99
Header Gasket
Dorman – Exhaust Manifold Crossover Pipe (Part No.679-002)
from
$303.99
This exhaust crossover pipe is designed to match the fit and function of the original pipe on specified applications, and is engineered for reliable performance and durability.
Product Features:
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Product Features:
- Direct replacement – this exhaust crossover pipe is designed to match the fit and function of the original tube on specified applications
- Restores functionality – reliable replacement for an original part that has failed due to heat, vibration or corrosion
- 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
Dorman – Exhaust Manifold Crossover Pipe (Part No.679-003)
from
$384.99
This exhaust crossover pipe is designed to match the fit and function of the original pipe on specified applications, and is engineered for reliable performance and durability.
Product Features:
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Product Features:
- Direct replacement – this exhaust crossover pipe is designed to match the fit and function of the original tube on specified applications
- Restores functionality – reliable replacement for an original part that has failed due to heat, vibration or corrosion
- 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
BRExhaust – Direct-Fit Exhaust System Kit (Part No.106-0418)
from
$352.99
BRExhaust Direct-Fit Replacement Exhaust Kit 106-0418 takes the guesswork out of replacing your exhaust system while providing a reliable and high-quality alternative to the OEM exhaust. You will find all of the gaskets and clamps needed to get the job done in the carefully packaged box. 106-0418’s precision mandrel bent pipes facilitate superior exhaust flow compared to the crush-bent pipes commonly used in competing aftermarket replacement exhaust systems. The multi-piece, bolt-on design ensures the exhaust system is easy to install yourself and fits perfectly to help get you back on the road in no time. No bending or welding is required for installation. This Direct-Fit Exhaust System Kit is designed to fit the 1997-2004 Buick Regal 3.8L. BRExhaust Direct-Fit Replacement Exhaust Kit 106-0418 includes (3) 2.125in. U-Bolt Clamps, (1) 2-Bolt Gasket, (3) 2in. U-Bolt Clamp Saddle Hangers, (2) Bolts, (2) Nuts and interchanges with OE parts 10256823, 10300204, 10312666, 10312667, 10315292, 10354953, 10354954, 10408316, 15144847. BRExhaust Direct-Fit Replacement Exhaust Kit 106-0418 features durable Aluminized Steel construction and is covered by a limited warranty.
Product Features:
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Product Features:
- All components, gaskets, clamps, and hardware required, along with installation instructions, are packaged together in a single protective box
- Bolt-on, multi-piece design for smooth and easy DIY installation around obstructions, ensuring quality fitment and function without requiring fabrication
- All components, gaskets, clamps, and hardware required, along with installation instructions, are packaged together in a single protective box
- Leaves all emissions equipment intact, maintaining emissions compliance
Walker – Exhaust Pipe 2" Inlet (OD) 2" Outlet (OD) (Part No.55154)
from
$80.99
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:
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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
Walker – SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2" Outlet (OD) (Part No.18246)
from
$95.99
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:
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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
Flowmaster Inc. – 50 Series Muffler, 2in Offset Inlet 2in Center Outlet, Non-Reversible, Moderate Sound (Part No.942051)
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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Dorman – Help – Exhaust Stud Kit – 3/8-16 x 2-1/2 In. (Part No.03112)
from
$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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
Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)
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:
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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
Walker – Direct Fit Exhaust Resonator 2" Outlet (ID) 2" Outlet (OD) (Part No.21340)
from
$111.99
Designed to fit, perform and sound like the original system, Walker resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.
Product Features:
See More
Product Features:
- RESISTS CORROSION – Durable aluminized steel construction and helps reduce corrosion
- FACTORY SOUND – OE-style louvered tubes (where applicable) help reduce radiated noise for factory-style sound
- FLEXIBLE SOLUTION – Customizable design for easy fitment and may require specialized fabrication and welding for installation
- STRONG AND DURABLE – Features thick OE-style flanges, hardware and brackets for strength
- GET MORE MILES FROM YOUR RESONATOR – Engineered to fit, perform and sound like the original system
BRExhaust – Exhaust Resonator (Part No.102-6011)
from
$231.99
BRExhaust direct-fit exhaust resonators are designed to install easily and help you retain the OE exhaust sound you are looking for. The resonator is engineered to optimally reduce unwanted noises and backpressure while protecting against corrosion. Aluminized steel construction ensures maximum durability.
See More
Felpro – Exhaust Pipe Flange Gasket (Part No.60986)
from
$4.99
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:
See More
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
Felpro – Exhaust Pipe Flange Gasket (Part No.61703)
from
$7.49
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:
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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
MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51204)
from
$194.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51204. 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 welds 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 Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
Product Features:
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Product Features:
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Compact, lightweight construction enables installation in confined areas, welding is required
MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.94016)
from
$126.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94016. 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:
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Product Features:
- Compact, lightweight construction enables installation in confined areas, welding is required
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
Walker – Exhaust Pipe Flange Gasket (Part No.31523)
from
$10.79
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:
See More
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
Walker – Exhaust Pipe Flange Gasket (Part No.31391)
from
$4.99
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:
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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
Flowtech – Flowtech LS Swap Exhaust Manifolds – Silver Ceramic Finish (Part No.31730-1FLT)
from
$497.99
Product Features:
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- 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
Hooker Headers – Hooker Small Block Chevrolet Exhaust Manifolds (Part No.8525-1HKR)
from
$562.99
Product Features:
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- A smoother, cleaner appearance compared to original exhaust manifolds, while maintaining a factory style look and feel
- Made from high silicon-molybdenum ductile iron for high temperature strength plus resistance to oxidation and cracking
- Designed with a larger 1 5/8″ cross-sectional area and 2 ╜” outlets for better air flow and increased performance
- Designed for rectangular port heads
- Accommodates standard straight and Vortec straight plug head designs for better application coverage
- Includes weld-on flanges for easier downpipe pipe installation (custom downpipe required)
- Available in natural cast iron or ceramic coated finishes (silver, black and titanium)
- Includes mounting hardware and gaskets for inlet and outlet flanges
Walker – Exhaust Clamp (Part No.35335)
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:
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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
Walker – Exhaust Clamp (Part No.35336)
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:
See More
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
Walker – Exhaust Pipe 2.25" Outlet (OD) (Part No.47577)
from
$73.99
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:
See More
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
Walker – Exhaust Tail Pipe 2" Inlet (OD) 2" Outlet (OD) (Part No.43770)
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:
See More
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
Walker – Exhaust System Hanger Insulator (Part No.35352)
from
$11.29
Complete your exhaust repair with Walker insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.
Product Features:
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Product Features:
- OE DESIGN : Designed with OE-style features for easy installation and fit
- PREMIUM MATERIALS : Made from high-quality materials for durability and long life
- 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
- BETTER TOGETHER : Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Walker – Exhaust System Hanger Insulator (Part No.35230)
from
$16.29
Complete your exhaust repair with Walker insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.
Product Features:
See More
Product Features:
- OE DESIGN – Designed with OE-style features for easy installation and fit
- PREMIUM MATERIALS – Made from high-quality materials for durability and long life
- 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
- BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Felpro – Exhaust Pipe Flange Gasket (Part No.61009)
from
$10.99
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:
See More
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
Upgrade your 2003 Buick Regal with Top-Quality Exhaust Parts
When it comes to maintaining or upgrading your 2003 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 28 Exhaust Parts for the 2003 Buick Regal, designed to meet your needs without breaking the bank.
From
Exhaust Pipe
replacements to
Exhaust Fittings
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 2003 Buick Regal at great prices.
Our Exhaust Parts inventory for this model
ranges from just $2.99 to $1,202.99, with
an average price of $205.84.
Our 28 Exhaust Parts in stock come from 7 trusted brands, so you’re sure to find the right part for your 2003 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 2003 Buick Regal, we stock popular OEM and aftermarket Exhaust Parts from top names
like Felpro, Walker, Dorman, and more.
Felpro Exhaust Parts
start at just $9.99 and boast an impressive 4.6 stars average rating from customers.
Walker and Dorman also bring quality to the table, with Exhaust Parts available starting at $6.99, and at an average 4.2 stars rating.
With 326 customer reviews and counting, our 2003 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 2003 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 2003 Buick Regal!
Best-Selling Exhaust Pipes for 2003 Buick Regals
Enhance the driving experience in your Buick with 7 quality Exhaust Pipe components, starting at $9.99.
Felpro – Exhaust Pipe Flange Gasket (Part No.61310)
from
$9.99
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:
See More
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
Walker – Direct Fit Exhaust Resonator 2" Outlet (ID) 2" Outlet (OD) (Part No.21340)
from
$111.99
Designed to fit, perform and sound like the original system, Walker resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.
Product Features:
See More
Product Features:
- RESISTS CORROSION – Durable aluminized steel construction and helps reduce corrosion
- FACTORY SOUND – OE-style louvered tubes (where applicable) help reduce radiated noise for factory-style sound
- FLEXIBLE SOLUTION – Customizable design for easy fitment and may require specialized fabrication and welding for installation
- STRONG AND DURABLE – Features thick OE-style flanges, hardware and brackets for strength
- GET MORE MILES FROM YOUR RESONATOR – Engineered to fit, perform and sound like the original system
Walker – Exhaust Pipe Flange Gasket (Part No.31605)
from
$12.99
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:
See More
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
Walker – Exhaust Pipe 2" Inlet (OD) 2" Outlet (OD) (Part No.55305)
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:
See More
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
Dorman – Exhaust Manifold Crossover Pipe (Part No.679-003)
from
$384.99
This exhaust crossover pipe is designed to match the fit and function of the original pipe on specified applications, and is engineered for reliable performance and durability.
Product Features:
See More
Product Features:
- Direct replacement – this exhaust crossover pipe is designed to match the fit and function of the original tube on specified applications
- Restores functionality – reliable replacement for an original part that has failed due to heat, vibration or corrosion
- 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
BRExhaust – Direct-Fit Exhaust System Kit (Part No.106-0418)
from
$352.99
BRExhaust Direct-Fit Replacement Exhaust Kit 106-0418 takes the guesswork out of replacing your exhaust system while providing a reliable and high-quality alternative to the OEM exhaust. You will find all of the gaskets and clamps needed to get the job done in the carefully packaged box. 106-0418’s precision mandrel bent pipes facilitate superior exhaust flow compared to the crush-bent pipes commonly used in competing aftermarket replacement exhaust systems. The multi-piece, bolt-on design ensures the exhaust system is easy to install yourself and fits perfectly to help get you back on the road in no time. No bending or welding is required for installation. This Direct-Fit Exhaust System Kit is designed to fit the 1997-2004 Buick Regal 3.8L. BRExhaust Direct-Fit Replacement Exhaust Kit 106-0418 includes (3) 2.125in. U-Bolt Clamps, (1) 2-Bolt Gasket, (3) 2in. U-Bolt Clamp Saddle Hangers, (2) Bolts, (2) Nuts and interchanges with OE parts 10256823, 10300204, 10312666, 10312667, 10315292, 10354953, 10354954, 10408316, 15144847. BRExhaust Direct-Fit Replacement Exhaust Kit 106-0418 features durable Aluminized Steel construction and is covered by a limited warranty.
Product Features:
See More
Product Features:
- All components, gaskets, clamps, and hardware required, along with installation instructions, are packaged together in a single protective box
- Bolt-on, multi-piece design for smooth and easy DIY installation around obstructions, ensuring quality fitment and function without requiring fabrication
- All components, gaskets, clamps, and hardware required, along with installation instructions, are packaged together in a single protective box
- Leaves all emissions equipment intact, maintaining emissions compliance
BRExhaust – Exhaust Resonator (Part No.102-6011)
from
$231.99
BRExhaust direct-fit exhaust resonators are designed to install easily and help you retain the OE exhaust sound you are looking for. The resonator is engineered to optimally reduce unwanted noises and backpressure while protecting against corrosion. Aluminized steel construction ensures maximum durability.
See More
Most Popular 2003 Buick Regal Exhaust Fittings
Customize your Buick with 1 Exhaust Fittings products
like Exhaust Clamps, all
priced under $2.99.
Walker – Exhaust Clamp (Part No.35335)
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:
See More
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
Top Picks for 2003 Buick Regal Exhaust Manifold and Headers
Upgrade Buick Regals with top-quality Exhaust Manifold and Headers parts, including 1 OEM and aftermarket selections for your 2003 model.
Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-540)
from
$67.99
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:
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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
In-Demand Exhaust Hangers for 2003 Buick Regals
Select from 4 premium Exhaust Hangers parts for your 2003 Buick Regal, with prices ranging from $6.99 to $19.99.
Dorman – Help – Catalytic Converter Exhaust Muffler/Resonator Hanger (Part No.57012)
from
$19.99
This direct-replacement exhaust hanger is designed to restore integrity to the exhaust system. Quality construction to ensure excellent durability.
Product Features:
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Product Features:
- Direct replacement – this exhaust system hanger installs exactly as the original part
- Easy installation – no special tools required to install this exhaust hanger
- Durable materials – quality materials for a long service life
- Quality tested – has undergone testing to ensure proper fit
Walker – Exhaust System Hanger Insulator (Part No.35460)
from
$6.99
Complete your exhaust repair with Walker insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.
Product Features:
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Product Features:
- OE DESIGN : Designed with OE-style features for easy installation and fit
- PREMIUM MATERIALS : Made from high-quality materials for durability and long life
- 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
- BETTER TOGETHER : Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Walker – Exhaust System Hanger Insulator (Part No.35352)
from
$11.29
Complete your exhaust repair with Walker insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.
Product Features:
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Product Features:
- OE DESIGN : Designed with OE-style features for easy installation and fit
- PREMIUM MATERIALS : Made from high-quality materials for durability and long life
- 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
- BETTER TOGETHER : Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03142)
from
$11.49
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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 2003 Buick Regal Exhaust Mufflers
Explore our best-selling Buick parts for the 2003 Regal among 3 OEM and aftermarket options starting from $10.99.
Felpro – Exhaust Pipe Flange Gasket (Part No.61009)
from
$10.99
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:
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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
Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) (Part No.21341)
from
$143.99
Product Features:
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- CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler body 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 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
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Walker – SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) (Part No.18820)
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:
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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
Top-Rated Exhaust Parts Brands For Your 2003 Buick Regal
Shop for the best-rated brands offering Exhaust Parts and other products for your 2003 Buick Regals. Below you’ll find some of our best rated Exhaust Parts from Felpro, Walker, and Dorman, and more. Exhaust Parts from these brands that fit a 2003 Regal start at just $6.99 and are rated as high as 4.6 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular Felpro 2003 Buick Regal Exhaust Parts
When it comes to maintaining or upgrading your 2003 Buick Regal, 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 2003 Buick Regal. With over 2 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 $9.99, with an average price of just $10.49. Plus, with over 11 customer reviews and an average rating of 4.6 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.
from
$9.99
(9)
Exhaust Pipe Flange Gasket
“Great prices and free shipping and the parts came in very quickly. Nobody else can compete with Advance Auto Parts”
Popular Walker 2003 Buick Regal Exhaust Parts
Walker auto parts is one of the highest quality Exhaust Part brands in the market. Any 2003 Buick Regal owner should feel confident when installing genuine Walker parts in their vehicle. To ensure the best fit and performance for your 2003 Regal, Advance Auto Parts carries a full inventory of 3 Walker Exhaust Parts. Plus you will be keeping your Buick in peak condition while saving money because prices on these Walker Exhaust Parts range from $6.99 to $143.99, plus, with more than 61 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.
from
$111.99
(5)
Direct Fit Exhaust Resonator 2" Outlet (ID) 2" Outlet (OD)
“Fit just like the factory piece with no issues.”
from
$143.99
(3)
Quiet-Flow SS Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD)
“Great product”
FAQs for 2003 Buick Regal Exhaust Parts
Which Exhaust Parts are best-sellers for 2003 Buick Regals?
Out of 28 Exhaust Parts that fit 2003 Buick Regals, the following parts are the top sellers:
- Exhaust System Hanger Insulator (5601584) – $11.29
- Ultra EPA Universal Catalytic Converter – 2.5" Inlet (ID) 2.5" Outlet (ID) (20200240) – $197.99
- Exhaust Stud Kit – M10-1.5 x 62mm (22148143) – $11.49
What’s the price range for 2003 Buick Regal Exhaust Parts?
Exhaust Part prices for the 2003 Buick Regal start at $2.99 and go up to $1,202.99 for the most premium parts.
What’s the average price of a Exhaust Part for a 2003 Buick Regal?
The average price for Exhaust Parts for the 2003 Buick Regal is $205.84. 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?
What are the cheapest Exhaust Parts for my 2003 Buick Regal?
The cheapest 2003 Buick Regal Exhaust Parts we carry in stock are:
- Exhaust Clamp (11012223) – $2.99
- Exhaust System Hanger Insulator (5601657) – $6.99
- Exhaust Pipe Flange Gasket (18370231) – $7.19
- Exhaust Pipe Flange Gasket (20688328) – $9.99
- Exhaust Pipe Flange Gasket (20680664) – $10.99
What are the top-rated Exhaust Parts that fit the 2003 Buick Regal?
Out of 326 reviews by customers, our 2003 Buick Regal Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 2003 Buick Regal and their top-rated products:
- Exhaust Mufflers
- Quiet-Flow SS Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) (18290418) – $143.99
- Exhaust Pipe Flange Gasket (20680664) – $10.99
- Exhaust Gaskets
- Quiet-Flow SS Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) (18290418) – $143.99
- Exhaust Pipe Flange Gasket (20680664) – $10.99
What types of Exhaust Parts do you sell for my 2003 Buick Regal?
As of 3/1/26, these are some of the most in-demand types of Exhaust Parts for a 2003 Buick Regal:
Can I get help with 2003 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.
