2003 GMC Envoy Exhaust Parts
More 2003 GMC Envoy Exhaust Parts Categories
If you’re looking for an original Exhaust Parts replacement for a 2003 GMC Envoy, you can search through our selection below. You’ll also find aftermarket and OEM Exhaust Parts to meet your needs.
Essential 2003 GMC Envoy Exhaust Parts
ARP Auto Racing – For Use With Chevy Ls V8 Engine, M8 Thread Size, Hex Head, Black Oxide, Set Of 12 (Part No.134-1102)
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$41.49
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.
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Product Features:
- Material Is Not Affected By Corrosion Or Extreme Heat
- The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
- Substantially Stronger Than Grade 8 Hardware
- Nominally Rated At 170,000 PSI Tensile Strength
- Set of 12
- 3/8” Wide Header Flange
- 1.181? Underhead Length
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)
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$17.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.
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Product Features:
- Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
- Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
- Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Dorman – Help – Exhaust Flange Stud Kit – M10-1.5 x 62mm Stainless Steel (Part No.03133HP)
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$26.99
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.
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Product Features:
- Upgraded hardware – this set of six M10-1.5 exhaust manifold mounting studs and nuts are 100 percent stainless steel for superior heat and corrosion resistance
- Convenient solution – kit contains all the application-specific hardware necessary to join one exhaust manifold to one manifold flange
- Matches fit – this hardware matches the fit and function of the factory fasteners, while offering superior durability
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03133)
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$17.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
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Product Features:
- Direct replacement for a proper fit every time
- Durable steel construction
- New hardware helps fix exhaust leaks
- Also available in the Exhaust Manifold Hardware Kit
Felpro – Exhaust Pipe Flange Gasket (Part No.61074)
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$6.79
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
Felpro – Exhaust Pipe Flange Gasket (Part No.61255)
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$16.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
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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 – 2 Bolt Exhaust Pipe Flange Gasket: Graphite with Steel, Heat Resistant, Premium Materials (Part No.31574)
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$11.99
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.
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Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora 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-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Mahle – Exh. Man. to Pipe Ga (Part No.H4003206403MAH)
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$16.82
Exh. Man. to Pipe Ga
Walker – CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No.82303)
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$1851.99
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.
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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
MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51206)
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$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206 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 OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
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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.
MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99206HM)
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$178.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM 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 OBDII Federally registered vehicles with Federal/EPA Emission systems.
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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.
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-869)
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$193.99
Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.
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Product Features:
- Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
- Complete kit – includes new manifold, manifold gasket, 1 flange gaskets, 3 studs, 3 nuts
- Direct fit – reverse engineered from original equipment for seamless installation
- Quality engineering – designed and tested in the United States
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-777)
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$172.99
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.
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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
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-785)
from
$227.99
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.
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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
Dorman – Exhaust Manifold Repair Clamp (Part No.917-108)
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$31.99
This exhaust manifold to cylinder head repair clamp is designed to match the fit and function of the original clamp on specified vehicles, and is engineered for durability and reliable performance.
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Product Features:
- Saves time – When an exhaust manifold fastener breaks, this exhaust manifold repair clamp saves time by creating a seal without needing to extract the broken stud
- Location-specific – engineered to fit the exhaust manifold center on specified GM and Hummer vehicles
- Complete kit – includes clamp and fasteners for a thorough, secure repair
- Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413)
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$15.99
Our Exhaust Manifold Hardware Kit comes with the necessary installation components to assist you in replacing your manifold. Save time and energy by having the right hardware on hand when you need it.
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Product Features:
- Direct replacement for a proper fit every time
- Durable steel construction
- Repair kit helps to secure exhaust manifold to the vehicle engine head
- Manufactured to strict engineering quality standards
Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.5 (Part No.35337)
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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.
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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
BRExhaust – Exhaust Clamp (Part No.250-265)
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$26.49
Sourcing mounting parts from the manufacturer that designs and makes the exhaust system is the only way to guarantee the perfect fit. That’s why, whilst developing the exhaust system, BRExhaust also develops the installation hardware to the same standards.
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Product Features:
- whilst developing the exhaust system
- BRExhaust also develops the installation hardware to the same standards.
- Manufactured from quality materials to ensure maximum durability
- Proper fit and functionality to finish your install
- Perfect, gas-tight performance
- Exhaust accessory that facilitates a complete installation process.
- Built to OEM specifications
BRExhaust – Exhaust Clamp (Part No.250-065)
from
$8.29
Sourcing mounting parts from the manufacturer that designs and makes the exhaust system is the only way to guarantee the perfect fit. That’s why, whilst developing the exhaust system, BRExhaust also develops the installation hardware to the same standards.
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Product Features:
- whilst developing the exhaust system
- BRExhaust also develops the installation hardware to the same standards.
- Manufactured from quality materials to ensure maximum durability
- Proper fit and functionality to finish your install
- Perfect, gas-tight performance
- Exhaust accessory that facilitates a complete installation process.
- Built to OEM specifications
Walker – SoundFX Muffler, Direct Replacement, No Fabrication Needed (Part No.18915)
from
$133.99
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.
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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/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
Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.54654)
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$199.99
Combining the only broad-market stainless-steel construction with a direct fit OE-style replacement, Walker® Quiet-Flow® SS muffler assemblies deliver longer life than typical aluminized mufflers and are available for domestic and foreign vehicles.
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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
Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.55272)
from
$158.99
Combining the only broad-market stainless-steel construction with a direct fit OE-style replacement, Walker® Quiet-Flow® SS muffler assemblies deliver longer life than typical aluminized mufflers and are available for domestic and foreign vehicles.
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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
Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21409)
from
$188.99
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:
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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
Victor Reinz – Exhaust Manifold Gasket Set (Part No.11-10604-01)
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$27.49
As you would expect, extremely high temperatures are the sealing challenge for exhaust manifold gaskets. Victor Reinz has a long heritage of supplying manifold gaskets to original equipment vehicle manufacturers. Therefore, Victor Reinz exhaust manifold gaskets meet OE specifications on a wide range of vehicles, covering the most recent high-tech engine designs and going back decades to the muscle car era.
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Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Felpro – Exhaust Manifold Gasket Set (Part No.MS 96302)
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$21.49
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
- Contains all gaskets and seals to remove and replace exhaust manifold
- Contains all gaskets and seals to remove and replace exhaust manifold
GM Genuine Parts – Exhaust Manifold Gasket (Part No.12617944)
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$17.99
GM Genuine Parts Exhaust Manifold Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They help form a gas-tight connection between the exhaust manifold and cylinder heads. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Product Features:
- Helps prevent exhaust leaks
- Helps provide a tight seal where the exhaust manifold mounts to the engine block
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
Felpro – Exh. Manifold Gasket (Part No.A8112975227FEL)
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$17.40
Exh. Manifold Gasket
Mahle – Exhaust Manifold Gas (Part No.A8111353759MAH)
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$17.22
Exhaust Manifold Gas
Popular 2003 GMC Envoy Exhaust Parts Categories
2003 GMC Envoy Exhaust Parts
You count on your 2003 GMC Envoy to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Exhaust Parts. With 29 Exhaust Parts ranging in price from $8.99 to $1,851.99, you’re sure to find everything you need for your 2003 GMC Envoy.
Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 6 different brands like Dorman, Walker, and Felpro. 2003 GMC Envoy Exhaust Parts start as low as $8.99!
One of the best ways to find top quality OEM or aftermarket Exhaust Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 210 extensive product reviews on 2003 GMC Envoy Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are SoundFX Muffler, Direct Replacement, No Fabrication Needed with 4.3 stars and Direct Fit Exhaust Manifold: With Heat Shield with 3.6 stars.
Did we mention you can order your Exhaust Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Exhaust Parts inventory for your 2003 GMC Envoy below to get started!
Top-Rated Exhaust Parts Brands For Your 2003 GMC Envoy
Trusted Exhaust Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 GMC Envoy running right for years to come. In our inventory you’ll find brands like Dorman, Walker, Felpro, and even more.
Popular Felpro Exhaust Parts
You’ll find popular Felpro brand products across Exhaust Gaskets and Exhaust Pipes. All are waiting to get your 2003 GMC Envoy back on the road. Some of the top-rated Felpro products in these categories are:
Top-Rated Dorman – Help Exhaust Parts
If Dorman – Help are what you’re looking for, our inventory holds plenty. We stock Dorman – Help brand Exhaust Parts for your 2003 GMC Envoy, and some of our most reviewed Dorman – Help parts include:
FAQs for 2003 GMC Envoy Exhaust Parts
What are the most purchased Exhaust Parts for the 2003 GMC Envoy?
Out of 29 Exhaust Parts for the 2003 GMC Envoy, the most popular in our inventory are:
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$184.99
(12)
Catalytic Converter- EPA Ultra, Universal/ Fabrication Needed
Catalytic Converters
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$13.99
(3)
Donut Exhaust Pipe Flange Gasket: Graphite, Heat Resistant, Premium Materials
Exhaust Pipe and Flange Gaskets
What are the top-rated 2003 GMC Envoy Exhaust Parts?
Top-rated Exhaust Parts for your 2003 GMC Envoy based on customer reviews/ratings are:
