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GMC Sierra Round Mufflers 

Our GMC Sierra round mufflers are the sporty choice when you need to upgrade your engine's sound or restore performance. Even a stock engine can benefit from a new GMC Sierra round muffler, but if you want to add some ponies, you may want to consider a performance GMC Sierra round muffler.


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Shop GMC Sierra Round Mufflers by Brand


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Fits: Chevrolet 02-up Avalanche, Chevrolet 04-up Colorado, Chevrolet 82-93 Blazer, Chevrolet 82-93 S10, Chevrolet 94-97 S10, Chevrolet 98-up S10, Chevrolet ...

PART# 13740

Length: 40"
Inlet Diameter: 3"
Outlet Diameter: 3"
Style: Round
Retail: $170.65
$109.22


Free Shipping!


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


Free Shipping!


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


Free Shipping!


Length: 20"
Outlet Diameter: 4"
Inlet Diameter: 4"
Style: Round
Retail: $234.51
$150.09


Free Shipping!


Length: 20"
Outlet Diameter: 3.5"
Inlet Diameter: 3.5"
Style: Round
Finish: Stainless Steel
Retail: $298.35
$190.94


Free Shipping!



Inlet Diameter: 2"
Outlet Diameter: 2"
Style: Round
Finish: Stainless Steel
Retail: $171.30
$109.63


Free Shipping!


Length: 20"
Outlet Diameter: 2.5"
Inlet Diameter: 2.5"
Style: Round
Finish: Stainless Steel
Retail: $214.36
$137.19


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2"
Style: Round
Finish: Stainless Steel
Retail: $222.41
$142.34


Free Shipping!


Inlet Diameter: 2.25"
Outlet Diameter: 2.25"
Style: Round
Finish: Stainless Steel
Retail: $222.41
$142.34


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2"
Style: Round
Retail: $148.92
$95.31


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Outlet Diameter: 4"
Inlet Diameter: 2.25"
Style: Round
Retail: $292.71
$187.33


Free Shipping!


Inlet Diameter: 3"
Outlet Diameter: 3"
Style: Round
Finish: Stainless Steel
Retail: $244.86
$156.71


Free Shipping!


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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?

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

OPEN BOX 5"CatBack Exhaust Muffler Kit FOR 01-05 GMC Sierra 2500 Duramax 6.6L V8

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

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

Stainless 3" Dual Split CatBack Muffler Exhaust 14-19 Chevy/GMC 1500 V8 Pickup

Stainless 3" CatBack Exhaust Muffler System 07-08 Chevy/GMC 1500 V8 Pickup Truc







GMC Sierra Round Mufflers 

Our GMC Sierra round mufflers are the sporty choice when you need to upgrade your engine's sound or restore performance. Even a stock engine can benefit from a new GMC Sierra round muffler, but if you want to add some ponies, you may want to consider a performance GMC Sierra round muffler.


Choose Your Vehicle:


Shop GMC Sierra Round Mufflers by Brand

1 - 12 of 61
Sort by:




Fits: Chevrolet 02-up Avalanche, Chevrolet 04-up Colorado, Chevrolet 82-93 Blazer, Chevrolet 82-93 S10, Chevrolet 94-97 S10, Chevrolet 98-up S10, Chevrolet ...

PART# 13740

Length: 40"
Inlet Diameter: 3"
Outlet Diameter: 3"
Style: Round
Retail: $170.65
$109.22


Free Shipping!


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


Free Shipping!


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


Free Shipping!


Length: 20"
Outlet Diameter: 4"
Inlet Diameter: 4"
Style: Round
Retail: $234.51
$150.09


Free Shipping!


Length: 20"
Outlet Diameter: 3.5"
Inlet Diameter: 3.5"
Style: Round
Finish: Stainless Steel
Retail: $298.35
$190.94


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2"
Style: Round
Finish: Stainless Steel
Retail: $171.30
$109.63


Free Shipping!


Length: 20"
Outlet Diameter: 2.5"
Inlet Diameter: 2.5"
Style: Round
Finish: Stainless Steel
Retail: $214.36
$137.19


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2"
Style: Round
Finish: Stainless Steel
Retail: $222.41
$142.34


Free Shipping!


Inlet Diameter: 2.25"
Outlet Diameter: 2.25"
Style: Round
Finish: Stainless Steel
Retail: $222.41
$142.34


Free Shipping!


Inlet Diameter: 2"
Outlet Diameter: 2"
Style: Round
Retail: $148.92
$95.31


Free Shipping!


Outlet Diameter: 4"
Inlet Diameter: 2.25"
Style: Round
Retail: $292.71
$187.33


Free Shipping!


Inlet Diameter: 3"
Outlet Diameter: 3"
Style: Round
Finish: Stainless Steel
Retail: $244.86
$156.71


Free Shipping!


Previous123456Next

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?

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

OPEN BOX 5"CatBack Exhaust Muffler Kit FOR 01-05 GMC Sierra 2500 Duramax 6.6L V8

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

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

Stainless 3" Dual Split CatBack Muffler Exhaust 14-19 Chevy/GMC 1500 V8 Pickup

Stainless 3" CatBack Exhaust Muffler System 07-08 Chevy/GMC 1500 V8 Pickup Truc