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The muffler of any exhaust system has the biggest effect on the exhaust note you hear, and the 2007-2017 GMC Sierra mufflers offered by AmericanTrucks are chosen to make everyone within hearing sit up and take notice. A deep, growling, commanding note is what you can expect from most of these mufflers, which are also tuned so that your cab will remain free of droning and high-pitched noises. Generally made out of high quality stainless steel with extra-strong, welded seams that won’t leak even under the pressure of a boosted air and exhaust system, these mufflers are designed to work over the long haul and often come with a limited lifetime warranty. They’re also high flow designs, with offset/offset, offset/center, and center/center piping choices, which will fit in with an aftermarket cat-back to produce greatly improved scavenging from the cylinders – putting even more pep in your Sierra.

Fitment Includes

  • 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 GMC Sierra 1500
  • Classic, Nevada Edition, SL, Z71, Denali, SLE, 1500, and SLT Sierras
  • Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8 6.2L VVT Vortec V8, 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.

GMC Sierra 1500 Mufflers