2003 Buick Regal Exhaust Parts

Name: Exhaust 21340 Exhaust Resonator
Brand: Walker
SKU: 21340
Price: 106.99 USD
Rating: 5.0 (5 reviews)

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 Hangers, Exhaust Pipes, Exhaust Fittings 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

Exhaust Manifold and Headers

Mufflers

Exhaust System Insulators

Catalytic Converters

Exhaust Resonators

Catalytic Converter Gaskets

Exhaust Pipes

Exhaust Hangers and Hardware

Exhaust Manifold Gaskets

Exhaust Clamps

Exhaust Pipe and Flange Gaskets

Exhaust Muffler Gaskets

Exhaust Seal Rings

Essential Exhaust Parts for 2003 Buick Regals

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$106.99

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:

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/or 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

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$10.99

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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$12.99

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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$80.99

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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$83.99

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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$10.65

Exhaust Seal Ring

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$59.99

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:

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″
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.

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$27.49

Mr. Gasket Performance exhaust gasket material is a heavy duty material, .062 inch thick, consisting of an acrylic binder system to resist high temperature. This material is made for sealing exhaust applications. Provides excellent sealing and durability.

Product Features:

Manufactured from high-temperature acrylic blend exhaust material
Provides excellent sealing and durability
Can be trimmed if necessary for modified port applications
For OE replacement, high performance street, drag race and oval track use
Resists Deteriorating
Provides Excellent Torque Retention

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$673.99

MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51703 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed specifically for the 2011-2013 Buick Regal. Hardware is included to eliminate the hassle of working with corroded factory parts. 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 California or Federal/EPA Emission systems.

Product Features:

Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
Simplifies installation with essential gaskets and hardware being included in the box.
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

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$130.99

MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94026 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). 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:

Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
Compact, lightweight construction enables installation in confined areas, welding is required.
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

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$6.79

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:

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

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$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:

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

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$6.49

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

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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

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$145.99

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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$70.99

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

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$7.89

Exhaust Pipe Gasket

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$36.99

Walker, with our worldwide OE partnerships and manufacturing facilities, possesses the technical excellence needed to meet today’s emissions control needs, while developing solutions for tomorrow’s challenges. Walker is a ‘one-stop’ convenience, offering complete engine-to-tailpipe coverage of replacement emissions control systems and components for popular domestic and import vehicles in broadmarket, performance, and commercial vehicle applications. Walker delivers optimal OE-style fit, appearance, and dependability in aftermarket emissions control parts.

Product Features:

Walker offers a variety of clamp styles and sizes for your installation needs
Helps to ensure a leak-free connection
Constructed from durable and robust material for long life
New Walker® accessories help to ensure effective exhaust repairs
Walker® supplies all of the accessories you need to do the complete exhaust job

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$7.99

Complete your exhaust repair with Walker? Brackets. Designed to support undercar exhaust components, Walker brackets are manufactured from durable and robust material for long service life.?

Product Features:

KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
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?
COMPATIBILITY — Works seamlessly with OE and Walker aftermarket replacement parts
BETTER TOGETHER?–?Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

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$2.49

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

Product Features:

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

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$7.99

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

Product Features:

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

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$12.99

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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$27.30

Dorman’s Exhaust Hanger installs easily to mount the exhaust to the vehicle. The Hanger is constructed from high-quality, heat-resistant materials for long-lasting durability.

Product Features:

Direct replacement for a proper fit
Replacement restores the exhaust to proper operation
Resilient against road and weather conditions that make the undercar environment a harsh one
Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards

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$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

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$63.99

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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$80.99

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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$362.99

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:

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

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$258.99

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:

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

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 33 Exhaust Parts for the 2003 Buick Regal, designed to meet your needs without breaking the bank. From Exhaust Hanger replacements to Exhaust Pipes 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 $1.99 to $641.99, with an average price of $124.17. Our 33 Exhaust Parts in stock come from 8 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 $8.79 and boast an impressive 5 stars average rating from customers. Walker and Dorman also bring quality to the table, with Exhaust Parts available starting at $1.99, and at an average 4 stars rating. With 328 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 Hangers for 2003 Buick Regals

Enhance the driving experience in your Buick with 6 quality Exhaust Hanger components, starting at $6.79.

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$17.99

Exhaust system loose or rattling? This direct-replacement exhaust hanger is designed to restore integrity to the exhaust system. Quality construction to ensure excellent durability.

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

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$6.79

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

from

$11.29

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

from

$11.49

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

Product Features:

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

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$17.84

Exhaust Hanger

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$27.30

Direct replacement for a proper fit
Replacement restores the exhaust to proper operation
Resilient against road and weather conditions that make the undercar environment a harsh one
Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards

Top Picks for 2003 Buick Regal Exhaust Fittings

Upgrade Buick Regals with top-quality Exhaust Fittings parts, including 1 OEM and aftermarket selections for your 2003 model.

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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 Manifold and Headers for 2003 Buick Regals

Select from 2 premium Exhaust Manifold and Headers parts for your 2003 Buick Regal, with prices ranging from $69.99 to $70.99.

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$70.99

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

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$69.99

More like a complete kit than a single part, many of our Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.

Product Features:

Heat-shield may be included for protection of engine components where applicable
Cast iron or stainless tubular construction protects against warping or cracking
Leak-resistant for long-lasting performance
A rigorous quality inspection has been undertaken to ensure product standards

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 $6.89.

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from

$131.99

The only broad-market muffler body 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 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/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

from

$111.99

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

from

$6.89

Exh. Man. to Pipe Ga

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 $1.99 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 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 3 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 $8.79, with an average price of just $15.02. Plus, with over 13 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.

from
$8.79

(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”

from
$10.29

(2)

Exhaust Pipe Flange Gasket

“Great gasket”

from
$25.99

(2)

EXHAUST MANIFOLD GASKET SET

“Works as designed the first time”

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 13 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 $1.99 to $641.99, plus, with more than 126 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.

from
$71.99

This product is not rated

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

“”

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$424.99

This product is not rated

EPA Ultra-Boxed Direct Fit Converter

“”

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$111.99

This product is not rated

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

“”

FAQs for 2003 Buick Regal Exhaust Parts

Which Exhaust Parts are best-sellers for 2003 Buick Regals?

Out of 33 Exhaust Parts that fit 2003 Buick Regals, the following parts are the top sellers:

Exhaust 35352 Exhaust System Hanger Insulator (5601584) – $11.29
Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) (20200240) – $179.99
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 $1.99 and go up to $641.99 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 $124.17. Keep in mind the variety of part types within our Exhaust Part category so you are likely to find a wide range of prices across a variety of parts and components.

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

Yes, we currently carry Exhaust Parts for 38 model years of Buick Regals between 1973 and 2017. Exhaust Parts are bought most frequently for the following model years: 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2004, and 2002.

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) – $1.99
Exhaust 35460 Exhaust System Hanger Insulator (5601657) – $6.79
Exh. Man. to Pipe Ga (12012925) – $6.89
Exhaust Pipe Flange Gasket (18370231) – $8.49
Exhaust Pipe Gasket (12094873) – $8.60

What are the top-rated Exhaust Parts that fit the 2003 Buick Regal?

Out of 328 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 Muffler, Direct Replacement, No Fabrication Needed (18290418) – $131.99
Exhaust Gaskets
- Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (18290418) – $131.99

What types of Exhaust Parts do you sell for my 2003 Buick Regal?

As of 2/5/25, 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.

2003 Buick Regal Exhaust Parts

Walker – Exhaust 21340 Exhaust Resonator (Part No.21340)

Walker – Exhaust Pipe Flange Gasket (Part No.31413)

Walker – Exhaust Pipe Flange Gasket (Part No.31523)

Walker – SoundFX Muffler, Direct Replacement, No Fabrication Needed (Part No.18275)

Walker – SoundFX Muffler, Direct Replacement, No Fabrication Needed (Part No.18409)

Elring – Exhaust Seal Ring (Part No.H4002210057ELR)

Mr. Gasket – Copper Seal: Exhaust Gasket Set (Part No.7153)

Mr. Gasket – Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing (Part No.150A)

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.51703)

MagnaFlow – Standard Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.94026)

Walker – Exhaust 35460 Exhaust System Hanger Insulator (Part No.35460)

Walker – Exhaust 35352 Exhaust System Hanger Insulator (Part No.35352)

Felpro – EXHAUST FLANGE GASKET (Part No.61703)

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

Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-202)

Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-540)

FELPRO – Exhaust Pipe Gasket (Part No.H4006977394FEL)

Walker – Exhaust Clamp (Part No.35723)

Walker – Exhaust Bracket (Part No.35003)

Walker – Exhaust Clamp (Part No.35336)

Dorman – Help – Exhaust Flange Spring-0.825 OD x 1.135 ID x 1.57 And 0.5 ID X .75 x OD 1.13 In. (Part No.03084)

Walker – Hanger Length 7.75 (Part No.35261)

Dorman – Dorman Exhaust Hanger (Part No.H8050202213DOR)

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

Walker – Exhaust Pipe 2.25" Outlet (OD) (Part No.47577)

Walker – Exhaust Pipe 2" Inlet (OD) 2" Outlet (OD) (Part No.55154)

Dorman – Exhaust Manifold Crossover Pipe (Part No.679-003)

Dorman – Exhaust Manifold Crossover Pipe (Part No.679-002)

Dorman – Help – Catalytic Converter Exhaust Muffler/Resonator Hanger (Part No.57012)

Walker – Exhaust 35460 Exhaust System Hanger Insulator (Part No.35460)

Walker – Exhaust 35352 Exhaust System Hanger Insulator (Part No.35352)

Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03142)

AP Exhaust – Exhaust Hanger (Part No.H80502393053APE)

Dorman – Dorman Exhaust Hanger (Part No.H8050202213DOR)

Felpro – Exhaust Pipe Flange Gasket (Part No.61310)

Felpro – Exhaust Pipe Flange Gasket (Part No.61009)

Walker – Exhaust 21340 Exhaust Resonator (Part No.21340)

Walker – Exhaust Pipe Flange Gasket (Part No.31578)

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

Elring – Exhaust Seal Ring (Part No.H4002210057ELR)

AP Exhaust – Exhaust Pipe Gasket (Part No.H40061025538APE)

Dorman – Exhaust Manifold Crossover Pipe (Part No.679-003)

Mahle – Exh. Man. to Pipe Ga (Part No.H4003341425MAH)

Walker – Exhaust Clamp (Part No.35335)

Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-540)

Dorman – Exhaust Manifold Kit (Part No.H1000683489DOR)

Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21341)

Walker – SoundFX Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) (Part No.18820)

Mahle – Exh. Man. to Pipe Ga (Part No.H4003202989MAH)