1-800-419-1152

Contact

Andy's Parts Smarts

Cart

Hello, Sign In!

Home

Exhaust

Mufflers

GMC Mufflers

Sierra Parts

Sierra Mufflers

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!

Home

Exhaust

Mufflers

GMC Mufflers

Sierra Parts

Sierra Mufflers

GMC Sierra Oval Mufflers

Choose Your Vehicle:

Shop GMC Sierra Oval Mufflers by Year

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

Shop GMC Sierra Oval Mufflers by Brand

Borla

Gibson

MagnaFlow

1 - 12 of 185

Sort by:

All Jeeps (Universal), Universal - Fits all Trucks / SUVs Magnaflow Muffler - 3.5

Magnaflow Muffler - 3.5"x7" Oval - 1.75"/1.75" Offset Inlet/Offset Outlet - 14" Body Length - 20" Overall Length - 2" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11133

Inlet Diameter: 1.75"

Outlet Diameter: 1.75"

Style: Oval

Retail: $161.18

$103.16

Free Shipping!

Magnaflow Muffler - 3.5"x7" Oval - 1.75"/1.75" Center Inlet/Offset Outlet - 14" Body Length - 20" Overall Length - 2" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11123

Inlet Diameter: 1.75"

Outlet Diameter: 1.75"

Style: Oval

Retail: $161.18

$103.16

Free Shipping!

Magnaflow Muffler - 3.5"x7" Oval - 1.75"/1.75" Center Inlet/Center Outlet - 14" Body Length - 20" Overall Length - 2" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11113

Inlet Diameter: 1.75"

Outlet Diameter: 1.75"

Style: Oval

Retail: $212.50

$136.00

Free Shipping!

Magnaflow Muffler - 3.5"x7" Oval - 2"/2.25" Offset Inlet/Offset Outlet - 11" Body Length - 17" Overall Length - 2" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11132

Inlet Diameter: 2"

Outlet Diameter: 2.25"

Style: Oval

Retail: $214.06

$137.00

Free Shipping!

All Jeeps (Universal), Universal - Fits all Trucks / SUVs Magnaflow Muffler - 4

Magnaflow Muffler - 4"x9" Oval - 2.5"/2.5" Center Inlet/Offset Outlet - 11" Body Length - 17" Overall Length - 2.5" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11366

Inlet Diameter: 2.5"

Outlet Diameter: 2.5"

Style: Oval

Retail: $181.25

$116.00

Free Shipping!

Magnaflow Muffler - 4"x9" Oval - 2.25"/2.25" Offset Inlet/Offset Same Side Outlet - 11" Body Length - 17" Overall Length - 2.5" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11375

Inlet Diameter: 2.25"

Outlet Diameter: 2.25"

Style: Oval

Retail: $181.25

$116.00

Free Shipping!

Magnaflow Muffler - 4"x9" Oval - 2.5"/2.5" Dual Inlet/Dual Outlet - 11" Body Length - 17" Overall Length - Dual 2.5" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11379

Length: 17"

Outlet Diameter: 2.5"

Inlet Diameter: 2.5"

Style: Oval

Retail: $237.50

$152.00

Free Shipping!

Magnaflow Muffler - 4"x9" Oval - 2.25"/2.25" Dual Inlet/Dual Outlet - 11" Body Length - 17" Overall Length - Dual 2.5" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11378

Length: 17"

Inlet Diameter: 2.25"

Outlet Diameter: 2.25"

Style: Oval

Retail: $237.50

$152.00

Free Shipping!

Magnaflow Muffler - 4"x9" Oval - 2.5"/2.5" Offset Inlet/Offset Same Side Outlet - 11" Body Length - 17" Overall Length - 2.5" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 11376

Inlet Diameter: 2.5"

Outlet Diameter: 2.5"

Style: Oval

Retail: $181.25

$116.00

Free Shipping!

All Jeeps (Universal), Universal - Fits all Trucks / SUVs Magnaflow Muffler - 5

Magnaflow Muffler - 5"x8" Oval - 4"/4" Center Inlet/Center Outlet - 6" Body Length - 12" Overall Length - 4" Core (Mirror Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 14152

Length: 12"

Inlet Diameter: 4"

Outlet Diameter: 4"

Style: Oval

Finish: Stainless Steel

Retail: $292.19

$187.00

Free Shipping!

Magnaflow Muffler - 5"x8" Oval - 3.5"/3.5" Center Inlet/Center Outlet - 6" Body Length - 12" Overall Length - 3.5" Core (Mirror Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 14150

Length: 12"

Inlet Diameter: 3.5"

Outlet Diameter: 3.5"

Style: Oval

Finish: Stainless Steel

Retail: $276.56

$177.00

Free Shipping!

Magnaflow Muffler - 4"x9" Oval - 2"/2" Offset Inlet/Offset Outlet - 14" Body Length - 20" Overall Length - Dual 2.5" Core (Satin Finish)

Fits: All Jeeps (Universal), Universal - Fits all Trucks / SUVs

PART# 13234

Inlet Diameter: 2"

Outlet Diameter: 2"

Style: Oval

Retail: $209.38

$134.00

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?

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

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

For GMC Sierra 3500 HD 2007-2013 Street Max SM12910 409 SS Oval Exhaust Muffler

Stainless CatBack Exhaust Muffler System 03-07 Chevy/GMC Silverado Sierra 1500

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

Click here to view more GMC Sierra Performance Mufflers on eBay