2008 GMC Sierra 2500 HD Exhaust Mufflers
Keep Your 2008 GMC Sierra 2500 HD in Top Shape with Quality Exhaust Mufflers
Whether you’re repairing or upgrading your Exhaust Muffler, using high-quality parts is key to keeping your 2008 GMC Sierra 2500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Mufflers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 2008 GMC Sierra 2500 HD Exhaust Muffler at Advance Auto Parts is around $393.99, with a range that starts at $163.99 and goes up to $738.99. With 4 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Ultra Flo Exhaust Muffler: Universal Fit, Stainless Steel, 25" L, 4" In, 4" Out, Oval, Quiet-Flow Direct Fit Exhaust Muffler 3.5" Inlet (ID) 3.5" Outlet (ID), and Quiet-Flow SS Direct Fit Exhaust Muffler 3.5" Outlet (OD) start at just $163.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Exhaust Muffler, don’t forget to check out other key components like Catalytic Converters and Exhaust Manifold and Headers. At Advance Auto Parts, we’re here to help you keep your 2008 GMC Sierra 2500 HD in peak condition, inside and out.
Find Your Specific 2008 GMC Sierra 2500 HD Exhaust Mufflers
Looking for the perfect Exhaust Muffler for your 2008 GMC Sierra 2500 HD? You’re in the right place. Below, you’ll find links to various types of Exhaust Mufflers that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Exhaust Mufflers, ensuring durability and a precise fit for your GMC Sierra 2500 HD. Whether you’re driving a 2008 model or another popular model year like
2009,
2010,
2011,
2012,
2013,
2014,
2015,
2016, and
2017, we’ve got you covered. Purchasing Exhaust Mufflers from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Exhaust Mufflers that fit your vehicle.
Essential 2008 GMC Sierra 2500 HD Exhaust Mufflers
Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.22307)
from
$307.99
Designed to deliver superior flow and OE-style sound, Walker Quiet-Flow mufflers are available for top-selling domestic and foreign vehicles.
Product Features:
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Product Features:
- 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
- RESISTS CORROSION — Internal drainage system helps reduce moisture collection
- 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 Direct Fit Exhaust Muffler 3" Inlet (ID) 3" Outlet (ID) (Part No.21522)
from
$168.99
Product Features:
See More
- EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
- RESISTS CORROSION – Internal drainage system helps reduce moisture collection
- BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 3" Outlet (ID) (Part No.21533)
from
$149.99
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:
See More
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 SS Direct Fit Exhaust Muffler 3.5" Outlet (OD) (Part No.21616)
from
$163.99
Product Features:
See More
- CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler body with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
- EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
- BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Dynomax – Ultra Flo Exhaust Muffler: Universal Fit, Stainless Steel, 25" L, 4" In, 4" Out, Oval (Part No.17557)
from
$195.99
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 uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The ‘Pure Unadulterated POWER’ of DynoMax Ultra Flo Welded mufflers are backed by a Limited Warranty and limited Performance & Sound Guarantee.
Product Features:
See More
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.
Walker – Quiet-Flow Direct Fit Exhaust Muffler 3.5" Inlet (ID) 3.5" Outlet (ID) (Part No.21706)
from
$476.99
Product Features:
See More
- EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
- RESISTS CORROSION – Internal drainage system helps reduce moisture collection
- BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Walker – SoundFX Direct Fit Exhaust Muffler (Part No.27263)
from
$149.99
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:
See More
Product Features:
- RESISTS CORROSIONá–áAluminized steel construction and internal drainage system helps reduceácorrosion
- 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 weldsáprovideástability 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 fabricationáand/or welding
- FACTORY SOUNDá–áLouvered 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
BRExhaust – Exhaust Muffler Assembly (Part No.100-7279)
from
$738.99
This BRExhaust muffler assembly is constructed by one of the leading aftermarket suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation with no modifications required. The component is designed to offer corrosion protection in addition to optimal noise reduction and low backpressure. Built from 16-gauge steel tubing and fully aluminized, these mufflers feature an OE-style direct fit configuration compatible with your import or domestic vehicle-while the interior design of the muffler box ensures quiet performance.
See More
Walker – Quiet-Flow Direct Fit Exhaust Muffler 3.5" Inlet (ID) 3.5" Outlet (ID) (Part No.21753)
from
$356.99
Product Features:
See More
- EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
- RESISTS CORROSION – Internal drainage system helps reduce moisture collection
- BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Popular 2008 GMC Sierra 2500 HD Exhaust Mufflers Categories
Most Popular Mufflers for 2008 GMC Sierra 2500 HDs
Enhance your 2008 GMC Sierra 2500 HD with one of the 4 Mufflers we have in stock, starting at just $163.99.
Dynomax – Ultra Flo Exhaust Muffler: Universal Fit, Stainless Steel, 25" L, 4" In, 4" Out, Oval (Part No.17557)
from
$195.99
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 uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The ‘Pure Unadulterated POWER’ of DynoMax Ultra Flo Welded mufflers are backed by a Limited Warranty and limited Performance & Sound Guarantee.
Product Features:
See More
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.
Walker – Quiet-Flow Direct Fit Exhaust Muffler 3.5" Inlet (ID) 3.5" Outlet (ID) (Part No.21706)
from
$476.99
Product Features:
See More
- EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
- RESISTS CORROSION – Internal drainage system helps reduce moisture collection
- BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
BRExhaust – Exhaust Muffler Assembly (Part No.100-7279)
from
$738.99
This BRExhaust muffler assembly is constructed by one of the leading aftermarket suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation with no modifications required. The component is designed to offer corrosion protection in addition to optimal noise reduction and low backpressure. Built from 16-gauge steel tubing and fully aluminized, these mufflers feature an OE-style direct fit configuration compatible with your import or domestic vehicle-while the interior design of the muffler box ensures quiet performance.
See More
Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 3.5" Outlet (OD) (Part No.21616)
from
$163.99
Product Features:
See More
- CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler body with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
- EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
- BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
FAQs for 2008 GMC Sierra 2500 HD Exhaust Mufflers
What are the best-selling Exhaust Mufflers for 2008 GMC Sierra 2500 HDs?
Out of 4 Exhaust Mufflers that fit 2008 GMC Sierra 2500 HDs, the following parts are the top sellers:
- Ultra Flo Exhaust Muffler: Universal Fit, Stainless Steel, 25" L, 4" In, 4" Out, Oval (20290047) – $195.99
- Quiet-Flow Direct Fit Exhaust Muffler 3.5" Inlet (ID) 3.5" Outlet (ID) (10959602) – $476.99
- Quiet-Flow SS Direct Fit Exhaust Muffler 3.5" Outlet (OD) (10451165) – $163.99
What’s the price range for 2008 GMC Sierra 2500 HD Exhaust Mufflers?
The prices of Exhaust Mufflers for the 2008 GMC Sierra 2500 HD range from $163.99 up to $738.99 for the most premium parts.
What is the average price of an Exhaust Muffler for a 2008 GMC Sierra 2500 HD?
The average price for Exhaust Mufflers for the 2008 GMC Sierra 2500 HD is $393.99. Keep in mind the variety of part types within our Exhaust Muffler category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Exhaust Mufflers for other GMC Sierra 2500 HD model years?
What are the cheapest Exhaust Mufflers for my 2008 GMC Sierra 2500 HD?
The cheapest 2008 GMC Sierra 2500 HD Exhaust Mufflers we carry are:
- Quiet-Flow SS Direct Fit Exhaust Muffler 3.5" Outlet (OD) (10451165) – $163.99
- Ultra Flo Exhaust Muffler: Universal Fit, Stainless Steel, 25" L, 4" In, 4" Out, Oval (20290047) – $195.99
- Quiet-Flow Direct Fit Exhaust Muffler 3.5" Inlet (ID) 3.5" Outlet (ID) (10959602) – $476.99
- Exhaust Muffler Assembly (50170594) – $738.99
Does Advance Auto Parts sell Exhaust Mufflers for any other 2008 GMC models?
Yes. We stock Exhaust Mufflers for 9 other popular 2008 GMC models. Some of the most popular are 2008 Yukon Exhaust Mufflers, 2008 Sierra 1500 Exhaust Mufflers, 2008 Yukon XL 1500 Exhaust Mufflers, 2008 Savana 1500 Exhaust Mufflers, and 2008 Savana 2500 Exhaust Mufflers.
What types of Exhaust Mufflers do you sell for my 2008 GMC Sierra 2500 HD?
We currently have just 1 Exhaust Muffler in stock for a 2008 GMC Sierra 2500 HD, and as of 11/2/25, it is a Muffler.
Can I get help with 2008 GMC Sierra 2500 HD Exhaust Muffler orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust Mufflers and more.
What is your return policy for GMC Sierra 2500 HD Exhaust Mufflers?
Advance Auto Parts keeps returns simple. For new GMC Sierra 2500 HD Exhaust Mufflers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.