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GMC Sierra Oval Mufflers 

Our GMC Sierra oval mufflers offer a classic shape and time-proven design. Available in a wide variety of finishes, GMC Sierra oval mufflers are also typically lower profile than other styles, so you can tuck them up as needed for additional clearance. Whether you want a stock or performance GMC Sierra oval muffler, we have it!


 Select Your Vehicle


Shop GMC Sierra Oval Mufflers by Brand


1 - 12 of 185
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Inlet Diameter: 1.75"
Outlet Diameter: 1.75"
Style: Oval
Retail: $161.18
$137.00


Free Shipping!


Inlet Diameter: 1.75"
Outlet Diameter: 1.75"
Style: Oval
Retail: $206.07
$131.88


Free Shipping!


Inlet Diameter: 1.75"
Outlet Diameter: 1.75"
Style: Oval
Retail: $161.18
$137.00


Free Shipping!


Inlet Diameter: 2.5"
Outlet Diameter: 2.5"
Style: Oval
Retail: $175.86
$112.55


Free Shipping!


Inlet Diameter: 2.25"
Outlet Diameter: 2.25"
Style: Oval
Retail: $175.86
$112.55


Free Shipping!



Length: 17"
Outlet Diameter: 2.5"
Inlet Diameter: 2.5"
Style: Oval
Retail: $231.66
$148.26


Free Shipping!


Length: 17"
Inlet Diameter: 2.25"
Outlet Diameter: 2.25"
Style: Oval
Retail: $231.66
$148.26


Free Shipping!


Inlet Diameter: 2.5"
Outlet Diameter: 2.5"
Style: Oval
Retail: $175.86
$112.55


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2.25"
Style: Oval
Retail: $208.63
$133.52


Free Shipping!


Length: 12"
Inlet Diameter: 4"
Outlet Diameter: 4"
Style: Oval
Finish: Stainless Steel
Retail: $284.70
$182.21


Free Shipping!


Length: 12"
Inlet Diameter: 3.5"
Outlet Diameter: 3.5"
Style: Oval
Finish: Stainless Steel
Retail: $269.31
$172.36


Free Shipping!


Inlet Diameter: 2.25"
Outlet Diameter: 4"
Style: Oval
Retail: $330.52
$211.53


Free Shipping!



When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Not able to find what you are looking for?

All-Welded-Stainless Muffler for 2011-2017 Chevy Silverado 2500 HD, GMC Sierra

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5" Cat Back Exhaust Muffler Kit 06-07 GMC Sierra 2500 Duramax 6.6L Turbo Diesel

Stainless CatBack Muffler Exhaust 03-07 Chevy Silverado GMC Sierra V8 Reg/StdCab

Muffler Exhaust System For 2014-2018 GMC Sierra 1500 4.3 5.3 With 143 Wheel Base

Gm 21576 , '99-2010 Chevy Silverado, '01-2010 GMC Sierra Performance Muffler





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GMC Sierra Oval Mufflers 

Our GMC Sierra oval mufflers offer a classic shape and time-proven design. Available in a wide variety of finishes, GMC Sierra oval mufflers are also typically lower profile than other styles, so you can tuck them up as needed for additional clearance. Whether you want a stock or performance GMC Sierra oval muffler, we have it!


Choose Your Vehicle:


Shop GMC Sierra Oval Mufflers by Brand

1 - 12 of 185
Sort by:




Inlet Diameter: 1.75"
Outlet Diameter: 1.75"
Style: Oval
Retail: $161.18
$137.00


Free Shipping!


Inlet Diameter: 1.75"
Outlet Diameter: 1.75"
Style: Oval
Retail: $206.07
$131.88


Free Shipping!


Inlet Diameter: 1.75"
Outlet Diameter: 1.75"
Style: Oval
Retail: $161.18
$137.00


Free Shipping!


Inlet Diameter: 2.5"
Outlet Diameter: 2.5"
Style: Oval
Retail: $175.86
$112.55


Free Shipping!


Inlet Diameter: 2.25"
Outlet Diameter: 2.25"
Style: Oval
Retail: $175.86
$112.55


Free Shipping!


Length: 17"
Outlet Diameter: 2.5"
Inlet Diameter: 2.5"
Style: Oval
Retail: $231.66
$148.26


Free Shipping!


Length: 17"
Inlet Diameter: 2.25"
Outlet Diameter: 2.25"
Style: Oval
Retail: $231.66
$148.26


Free Shipping!


Inlet Diameter: 2.5"
Outlet Diameter: 2.5"
Style: Oval
Retail: $175.86
$112.55


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2.25"
Style: Oval
Retail: $208.63
$133.52


Free Shipping!


Length: 12"
Inlet Diameter: 4"
Outlet Diameter: 4"
Style: Oval
Finish: Stainless Steel
Retail: $284.70
$182.21


Free Shipping!


Length: 12"
Inlet Diameter: 3.5"
Outlet Diameter: 3.5"
Style: Oval
Finish: Stainless Steel
Retail: $269.31
$172.36


Free Shipping!


Inlet Diameter: 2.25"
Outlet Diameter: 4"
Style: Oval
Retail: $330.52
$211.53


Free Shipping!



When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Not able to find what you are looking for?

All-Welded-Stainless Muffler for 2011-2017 Chevy Silverado 2500 HD, GMC Sierra

5" CatBack Exhaust Muffler Kit 01-05 GMC Sierra 2500 Duramax 6.6L Turbo Diesel

5" Cat Back Exhaust Muffler Kit 06-07 GMC Sierra 2500 Duramax 6.6L Turbo Diesel

Stainless CatBack Muffler Exhaust 03-07 Chevy Silverado GMC Sierra V8 Reg/StdCab

Muffler Exhaust System For 2014-2018 GMC Sierra 1500 4.3 5.3 With 143 Wheel Base

Gm 21576 , '99-2010 Chevy Silverado, '01-2010 GMC Sierra Performance Muffler