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GMC Sierra Performance Mufflers

Lift your sled's power and acceleration and exhaust sound in a whole new direction. The boosted power and acceleration of GMC Sierra mufflers comes from their specially built interiors. The tone you've been searching for can be accessible, no matter if intense or mellow.
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GMC Sierra MagnaFlow XL Turbo Muffler
  • From $134.00
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GMC Sierra Flowmaster Super 44 Series Muffler
  • From $109.95
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GMC Sierra Cherry Bomb Glass Pack Muffler
  • From $43.99
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GMC Sierra Flowmaster 40 Series Muffler
  • From $99.95
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GMC Sierra MagnaFlow Satin Stainless Steel Muffler
  • From $98.00
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GMC Sierra Heartthrob Velocity Muffler
  • From $90.49
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GMC Sierra Cherry Bomb Vortex Muffler
  • From $66.49
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GMC Sierra MagnaFlow Polished Stainless Steel Street Series Muffler With Tip
  • From $186.00
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GMC Sierra Flowmaster 50 Series Delta Flow Muffler
  • From $149.95
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GMC Sierra Heartthrob Welded Turbo Muffler
  • From $92.49
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GMC Sierra Flowmaster Super 10 Series Muffler
  • From $99.95
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GMC Sierra MagnaFlow Polished Stainless Steel Muffler
  • From $113.00
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GMC Sierra Magnaflow Glass Pack Muffler
  • From $59.80
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GMC Sierra Flowmaster Super 40 Series Muffler
  • From $129.95
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GMC Sierra Heartthrob Dual Tube Muffler
  • From $52.49
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GMC Sierra Heartthrob Glasspack Muffler
  • From $36.49
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GMC Sierra MagnaFlow Polished Stainless Steel Race Series Muffler With Tip
  • From $240.00
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GMC Sierra Cherry Bomb Turbo Muffler
  • From $45.49
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GMC Sierra BBK Varitune Muffler
  • From $139.99
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GMC Sierra Flowmaster 80 Series Muffler
  • From $159.95
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GMC Sierra Flowmaster 50 Series SUV Muffler
  • From $179.95
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GMC Sierra Cherry Bomb Extreme Muffler
  • From $54.49
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GMC Sierra Flowmaster 40 Series Delta Flow Muffler
  • From $129.95
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GMC Sierra Flowmaster 60 Series Delta Flow Muffler
  • From $179.95
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GMC Sierra Cherry Bomb Pro Muffler
  • From $59.49
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GMC Sierra MBRP Quiet Tone Muffler
  • From $214.99
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GMC Sierra Heartthrob Flowpack Muffler
  • From $52.49
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GMC Sierra MagnaFlow Race & Specialty Series Muffler
  • From $177.00
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GMC Sierra Flowmaster 50 Series HD Muffler
  • From $239.95
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GMC Sierra DC Sports Muffler
(1 Reviews)
  • From $142.79
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GMC Sierra Flowmaster 50 Series Big Block Muffler
  • From $256.95
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GMC Sierra Heartthrob Welded Truck Muffler
  • From $126.49
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About GMC Sierra Mufflers

Maximize your Sierra's growl. We stock Sierra mufflers in many different styles and sounds, so that it's simple to pick up the sound quality you're after. Pick up every kind of GMC mufflers at budget-friendly prices with AAG.

More Popular Sierra Pickup Accessories: GMC Sierra Floor Mats and Floor Liners, GMC Sierra Headers, GMC Sierra Catalytic Converters, GMC Sierra Grilles & GMC Sierra Gauges.

We offer GMC Sierra Mufflers for the following years:
  • 2024 GMC Sierra Pickup Mufflers
  • 2023 GMC Sierra Pickup Mufflers
  • 2022 GMC Sierra Pickup Mufflers
  • 2021 GMC Sierra Pickup Mufflers
  • 2020 GMC Sierra Pickup Mufflers
  • 2019 GMC Sierra Pickup Mufflers
  • 2018 GMC Sierra Pickup Mufflers
  • 2017 GMC Sierra Pickup Mufflers
  • 2016 GMC Sierra Pickup Mufflers
  • 2015 GMC Sierra Pickup Mufflers
  • 2014 GMC Sierra Pickup Mufflers
  • 2013 GMC Sierra Pickup Mufflers
  • 2012 GMC Sierra Pickup Mufflers
  • 2011 GMC Sierra Pickup Mufflers
  • 2010 GMC Sierra Pickup Mufflers
  • 2009 GMC Sierra Pickup Mufflers
  • 2008 GMC Sierra Pickup Mufflers
  • 2007 GMC Sierra Pickup Mufflers

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