2021 GMC Sierra 1500 Exhaust Parts

Essential Exhaust Parts for 2021 GMC Sierra 1500s

Felpro – Exhaust Pipe Flange Gasket (Part No.61074)

Exhaust Pipe Flange Gasket

from

$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:
  • 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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BRExhaust – Exhaust Flange Gasket (Part No.256-1093)

Exhaust Flange Gasket

from

$12.29
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
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Felpro – Exhaust Pipe Flange Gasket (Part No.61287)

Exhaust Pipe Flange Gasket

from

$8.79
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:
  • 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
See More

Flowmaster Inc. – 70 Series Muffler, 3in Center Inlet 3in Offset Outlet, 22in long, Non-Reversible, Mild Sound (Part No.853072)

70 Series Muffler, 3in Center Inlet 3in Offset Outlet, 22in long, Non-Reversible, Mild Sound

from

$232.99
The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.

Product Features:
  • Mild to stock exterior exhaust tone
  • Minimal interior resonance
  • Recommended for SUV/trucks/motorhomes/tow vehicles
  • Improved horsepower, torque and potential mileage improvement
  • Race proven patented Delta Flow technology
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Flowmaster Inc. – 70 Series Muffler, 3in Center Inlet 3in Offset Outlet, 22in long, Non-Reversible, Mild Sound (Part No.53072)

70 Series Muffler, 3in Center Inlet 3in Offset Outlet, 22in long, Non-Reversible, Mild Sound

from

$221.99
The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – 50 Series Muffler, 3.5in Offset Inlet 3.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.953558)

50 Series Muffler, 3.5in Offset Inlet 3.5in Offset Outlet, Non-Reversible, Moderate Sound

from

$247.99
Designed primarily for today’s heavy duty gas and diesel trucks, this muffler will deliver improved performance, throttle response and mileage. Featuring a deeper, moderate tone with minimal resonance, it is ideal for trucks with modified engines. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Walker – Exhaust Pipe Flange Gasket (Part No.31554)

Exhaust Pipe Flange Gasket

from

$17.99
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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Mahle – Exh. Man. to Pipe Ga (Part No.H4003205960MAH)

Exh. Man. to Pipe Ga

from

$13.87
Exh. Man. to Pipe Ga

Victor Reinz – Catalytic Converter Gasket (Part No.71-14058-00)

Catalytic Converter Gasket

from

$7.29
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

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.
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Borla Performance Exhaust – Cat-Back Exhaust System – S-Type (Part No.140774BC)

Cat-Back Exhaust System - S-Type

from

$1873.99
Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such “concours classics” as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.Borla is proud to offer a true “Made in the USA” product sold around the world. We are a company of motorheads, and it shows in our products, customer service, and culture. On weekends, the same Borla employees who built your exhaust or helped you with technical support can be found competing at tracks, drag strips, off-road events and car shows. Constructed using T-304 stainless steel for long life and sharp appearance, and features all welded construction for maximum durability. Unlike any other exhaust brand, Borla’systems are designed from scratch on a vehicle-by-vehicle basis. Every car or truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics,soundand more.

Product Features:
  • Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive powerful sound
  • Each system is built from premium, high-quality austenitic T-304 stainless steel
  • Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit
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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.19470)

Street Series Cat-Back Performance Exhaust System

from

$1281.99
The Street Series Black Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Features Black coated tips.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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Borla Performance Exhaust – Cat-Back Exhaust System – S-Type (Part No.140770BC)

Cat-Back Exhaust System - S-Type

from

$1728.99
Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such “concours classics” as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.Borla is proud to offer a true “Made in the USA” product sold around the world. We are a company of motorheads, and it shows in our products, customer service, and culture. On weekends, the same Borla employees who built your exhaust or helped you with technical support can be found competing at tracks, drag strips, off-road events and car shows. Constructed using T-304 stainless steel for long life and sharp appearance, and features all welded construction for maximum durability. Unlike any other exhaust brand, Borla’systems are designed from scratch on a vehicle-by-vehicle basis. Every car or truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics,soundand more.

Product Features:
  • Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive powerful sound
  • Each system is built from premium, high-quality austenitic T-304 stainless steel
  • Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit
See More

MagnaFlow – D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler (Part No.19476)

D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler

from

$201.99
The MagnaFlow D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler 19476 19476 replaces the restrictive factory muffler of your Truck with fast-flowing mandrel bent 2.75in. tubing, while maintaining the OEM piping and tailpipe. Exhaust Muffler kit 19476 features a direct-fit, easy-to-install design and is produced using CNC precision robotic manufacturing techniques. This exhaust system’s durable, corrosion resistant stainless steel construction is backed by MagnaFlow’s limited lifetime warranty.

Product Features:
  • 409 Stainless Steel Construction
  • Mandrel Bent Stainless Steel Tubing
  • Maintains the OEM piping and tailpipe
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MagnaFlow – D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler (Part No.19491)

D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler

from

$201.99
The MagnaFlow D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler 19491 19491 replaces the restrictive factory muffler of your Truck with fast-flowing mandrel bent 3.5in. tubing, while maintaining the OEM piping and tailpipe. Exhaust Muffler kit 19491 features a direct-fit, easy-to-install design and is produced using CNC precision robotic manufacturing techniques. This exhaust system’s durable, corrosion resistant stainless steel construction is backed by MagnaFlow’s limited lifetime warranty.

Product Features:
  • 409 Stainless Steel Construction
  • Mandrel Bent Stainless Steel Tubing
  • Maintains the OEM piping and tailpipe
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Dorman – Exhaust Manifold Clamp Repair (Part No.917-142)

Exhaust Manifold Clamp Repair

from

$47.99
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.

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 on the front left or rear right on specified GM and Isuzu 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
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Felpro – EXHAUST MANIFOLD BOLT SET (Part No.ES 75120)

EXHAUST MANIFOLD BOLT SET

from

$24.99
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:
  • Designed and manufactured to meet the needs of the exhaust system repair environment.
  • Verified, tested and certified proprietary Organic coating resists corrosion.
  • Tightly controlled coefficient of friction ensures reliable installation.
  • Application specific kit contents
  • Self-locking nuts (where applicable).
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Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413)

Exhaust Manifold Hardware Kit

from

$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.

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
See More

Dorman – Exhaust Manifold Clamp Repair (Part No.917-107)

Exhaust Manifold Clamp Repair

from

$51.99
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.

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 on specified GM and Isuzu vehicles on the front right on vehicles without EGR valve, or rear left.
  • 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
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Mr. Gasket – Black Oxide Header Bolts for Tight Spaces (Part No.918G)

Black Oxide Header Bolts for Tight Spaces

from

$12.79
Black oxide finished carbon steel header bolts have a compact hex head and the flange is ideal for use where space is minimal – your typical header flange. Includes twelve (12) M8 – 1.25 x 25mm header bolts.

Product Features:
  • 12 per Package
  • Fits GM LS Series Engines
  • Black Oxide Finish Resists Corrosion
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Dorman – Help – Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel (Part No.03413HP)

Exhaust Manifold Hardware Kit - M8-1.25 Stainless Steel

from

$28.99
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.

Product Features:
  • Upgraded hardware – this set of twelve M8-1.25 x 30mm exhaust manifold mounting bolts are 100 percent stainless steel for superior heat and corrosion resistance.
  • Convenient solution – kit contains all the application-specific hardware necessary to install one exhaust manifold
  • 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
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Mr. Gasket – Exhsthdrbolt (Part No.2235G)

Exhsthdrbolt

from

$58.99
Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:
  • 12 per Package
  • Includes Ball Head Socket Tool – to Start Header Bolt Into Head
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth
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Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)

Exhaust Manifold Hardware Kit

from

$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.

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
See More

Dorman – Exhaust Manifold Hardware Kit (Part No.675-226)

Exhaust Manifold Hardware Kit

from

$22.49
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.

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
See More

Mahle – Exh. Manifold Gasket (Part No.A8112323250MAH)

Exh. Manifold Gasket

from

$26.02
Exh. Manifold Gasket

Victor Reinz – Exhaust Manifold Gasket Set (Part No.11-10604-01)

Exhaust Manifold Gasket Set

from

$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.

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.
See More

Felpro – EXHAUST MANIFOLD GASKET SET (Part No.MS 95842)

EXHAUST MANIFOLD GASKET SET

from

$31.49
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
  • Contains all gaskets and seals to remove and replace exhaust manifold
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Taylor Gaskets – Seal-4-Good Header Flange Gasket (Part No.66078)

Seal-4-Good Header Flange Gasket

from

$48.99
Seal-4-Good Header Flange Gasket

Felpro – Exhaust Manifold Gasket Set (Part No.MS 92467)

Exhaust Manifold Gasket Set

from

$31.99
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
  • Contains all gaskets and seals to remove and replace exhaust manifold
  • Contains all gaskets and seals to remove and replace exhaust manifold
See More

Upgrade your 2021 GMC Sierra 1500 with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 2021 GMC Sierra 1500, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Exhaust Parts are key to keeping your Sierra 1500 functioning at its best. At Advance Auto Parts, we offer a wide selection of 33 Exhaust Parts for the 2021 GMC Sierra 1500, designed to meet your needs without breaking the bank. From Exhaust Muffler 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 2021 GMC Sierra 1500 at great prices. Our Exhaust Parts inventory for this model ranges from just $5.29 to $1,953.99, with an average price of $628.47. Our 33 Exhaust Parts in stock come from 11 trusted brands, so you’re sure to find the right part for your 2021 GMC Sierra 1500 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 2021 GMC Sierra 1500, we stock popular OEM and aftermarket Exhaust Parts from top names like FELPRO Dorman, and more. FELPRO Exhaust Parts start at just $5.29 and boast an impressive 5 stars average rating from customers. With 432 customer reviews and counting, our 2021 GMC Sierra 1500 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 2021 GMC Sierra 1500 is always ready to roll. We’re committed to providing you with everything you need to keep your Sierra 1500 in top shape, all in one place. Start shopping confidently below for your 2021 GMC Sierra 1500!

Best-Selling Exhaust Mufflers for 2021 GMC Sierra 1500s

Enhance the driving experience in your GMC with 2 quality Exhaust Muffler components, starting at $114.99.

Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval (Part No.17547)

Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval

from

$212.99
DynoMax Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler

Product Features:
  • Stainless steel construction for lifelong protection
  • 100% welded design for maximum durability
  • Straight through design ensures unrestricted exhaust flow and reduces back pressure
  • CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
  • Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
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MBRP Exhaust – T-409 Stainless Steel, 3"Dia Pipe (Part No.S5001409)

T-409 Stainless Steel, 3"Dia Pipe

from

$114.99
XP Series is the performance exhaust of choice for the enthusiast who needs a system that can take anything that the road throws at it. This system rugged sixteen gauge T409 construction can be counted on to withstand everything from salt to rocks, tar to grime. Built to Perform MBRP performance exhaust systems are built to perform. Designed to maximize exhaust flow and minimize exhaust temperatures your vehicle. Every system we sell has been built to the most exacting standards in the industry.

Product Features:
  • Increased Flow And Performance
  • Mandrel Bent 3 Inch Tubing
  • Muffler Bypass
  • Simple Installation
See More

Most Popular 2021 GMC Sierra 1500 Exhaust Pipes

Customize your GMC with 2 Exhaust Pipes products like Exhaust Pipe and Flange Gaskets, all priced under $6.79.

Felpro – Exhaust Pipe Flange Gasket (Part No.61089)

Exhaust Pipe Flange Gasket

from

$5.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Felpro – Exhaust Pipe Flange Gasket (Part No.61074)

Exhaust Pipe Flange Gasket

from

$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:
  • 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
See More

Top Picks for 2021 GMC Sierra 1500 Catalytic Converters

Upgrade GMC Sierra 1500s with top-quality Catalytic Converters parts, including 4 OEM and aftermarket selections for your 2021 model.

Felpro – Exhaust Pipe Gasket (Part No.H4006977224FEL)

Exhaust Pipe Gasket

from

$11.32
Exhaust Pipe Gasket

Mahle – Exh. Man. to Pipe Ga (Part No.H4003205960MAH)

Exh. Man. to Pipe Ga

from

$13.87
Exh. Man. to Pipe Ga

Mahle – Exh. Man. to Pipe Ga (Part No.H4003206101MAH)

Exh. Man. to Pipe Ga

from

$11.33
Exh. Man. to Pipe Ga

Autopart International Inc – Exhaust Pipe Gasket (Part No.H40061911048API)

Exhaust Pipe Gasket

from

$10.20
Exhaust Pipe Gasket

In-Demand Exhaust Gaskets for 2021 GMC Sierra 1500s

Select from 1 premium Exhaust Gaskets parts for your 2021 GMC Sierra 1500.

Felpro – Exhaust Manifold Gasket Set (Part No.MS 97405)

Exhaust Manifold Gasket Set

from

$25.99
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
See More

Most Sold 2021 GMC Sierra 1500 Exhaust Manifold and Headers

Explore our best-selling GMC parts for the 2021 Sierra 1500 among 4 OEM and aftermarket options starting from $17.99.

Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)

Exhaust Manifold Hardware Kit

from

$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.

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
See More

Dorman – Help – Exhaust Manifold Hardware Kit (Part No.32110)

Exhaust Manifold Hardware Kit

from

$29.99
This engine manifold stud and nut match the fit and function of the original hardware on specific makes and models. Ensure a thorough manifold repair or installation with this durable and reliable hardware.

Product Features:
  • Direct replacement – this engine manifold stud and nut match the fit and function of the original stud and nut on specified years, makes and models
  • Ideal solution – replaces missing or damaged hardware to ensure a thorough manifold installation or repair
  • Durable construction – made of quality materials for reliable service life
  • Quality assured – backed by a team of product engineers based in the United States
See More

Dorman – Help – Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel (Part No.03413HP)

Exhaust Manifold Hardware Kit - M8-1.25 Stainless Steel

from

$28.99
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.

Product Features:
  • Upgraded hardware – this set of twelve M8-1.25 x 30mm exhaust manifold mounting bolts are 100 percent stainless steel for superior heat and corrosion resistance.
  • Convenient solution – kit contains all the application-specific hardware necessary to install one exhaust manifold
  • 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
See More

Dorman – Exhaust Manifold Hardware Kit (Part No.675-226)

Exhaust Manifold Hardware Kit

from

$22.49
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.

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
See More

Top-Rated Exhaust Parts Brands For Your 2021 GMC Sierra 1500

Shop for the best-rated brands offering Exhaust Parts and other products for your 2021 GMC Sierra 1500s. Below you’ll find some of our best rated Exhaust Parts from FELPRO and Dorman, and more. Exhaust Parts from these brands that fit a 2021 Sierra 1500 start at just $5.29 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 2021 GMC Sierra 1500 Exhaust Parts

When it comes to maintaining or upgrading your 2021 GMC Sierra 1500, 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 2021 GMC Sierra 1500. With over 4 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 $5.29, with an average price of just $12.35. Plus, with over 17 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.

Exhaust Pipe Flange Gasket
from
$5.29

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Exhaust Pipe Flange Gasket

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Exhaust Pipe Gasket
from
$11.32
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Exhaust Pipe Gasket

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Exhaust Manifold Gasket Set
from
$25.99
This product is not rated

Exhaust Manifold Gasket Set

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Popular Dorman 2021 GMC Sierra 1500 Exhaust Parts

Dorman auto parts is one of the highest quality Exhaust Part brands in the market. Any 2021 GMC Sierra 1500 owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 2021 Sierra 1500, Advance Auto Parts carries a full inventory of 5 Dorman Exhaust Parts. Plus you will be keeping your GMC in peak condition while saving money because prices on these Dorman Exhaust Parts range from $15.99 to $29.99, plus, with more than 37 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.

Exhaust Manifold Hardware Kit
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$29.99
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Exhaust Manifold Hardware Kit

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Exhaust Manifold Hardware Kit - M8-1.25 Stainless Steel
from
$28.99
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Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel

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Exhaust Manifold Hardware Kit
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$22.49
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Exhaust Manifold Hardware Kit

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FAQs for 2021 GMC Sierra 1500 Exhaust Parts

Which Exhaust Parts are best-sellers for 2021 GMC Sierra 1500s?

Out of 33 Exhaust Parts that fit 2021 GMC Sierra 1500s, the following parts are the top sellers:

What’s the price range for 2021 GMC Sierra 1500 Exhaust Parts?

Exhaust Part prices for the 2021 GMC Sierra 1500 start at $5.29 and go up to $1,953.99 for the most premium parts.

What’s the average price of a Exhaust Part for a 2021 GMC Sierra 1500?

The average price for Exhaust Parts for the 2021 GMC Sierra 1500 is $628.47. Keep in mind the variety of part types within our Exhaust Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust Parts for other GMC Sierra 1500 model years?

Yes, we currently carry Exhaust Parts for 25 model years of GMC Sierra 1500s between 1999 and 2024. Exhaust Parts are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Exhaust Parts for my 2021 GMC Sierra 1500?

The cheapest 2021 GMC Sierra 1500 Exhaust Parts we carry in stock are:

What are the top-rated Exhaust Parts that fit the 2021 GMC Sierra 1500?

Out of 432 reviews by customers, our 2021 GMC Sierra 1500 Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 2021 GMC Sierra 1500 and their top-rated products:

What types of Exhaust Parts do you sell for my 2021 GMC Sierra 1500?

As of 2/5/25, these are some of the most in-demand types of Exhaust Parts for a 2021 GMC Sierra 1500:

Can I get help with 2021 GMC Sierra 1500 Exhaust Part orders?

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

What is your return policy for GMC Sierra 1500 Exhaust Parts?

Advance Auto Parts keeps returns simple. For new GMC Sierra 1500 Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.