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Flowmaster 70 Series Center/Offset Oval Muffler - 3.0 in. (Universal Fitment)

AmericanTrucks no longer carries the Flowmaster 70 Series Center/Offset Oval Muffler - 3.0 in. (Universal Fitment). Please check out 2014-2018 Sierra 1500 Exhaust for an updated selection.

Features & Details

  • Delta Flow Technology
  • 3-Inch Diameter
  • Mild Exhaust Tone
  • Minimal Interior Resonance
  • Improves Horsepower and Fuel Efficiency
  • Limited Lifetime Warranty
  • Universal Fitment; Modifications Will Be Required
Flowing Out. Looking for a mild exhaust upgrade, but don’t want to replace the exhaust? The Flowmaster 70 Series 3-Inch Center/Offset Oval Muffler can do the trick. This muffler is a great replacement for your stock Sierra muffler as it uses Flowmaster’s patented Delta Flow Technology to improve your truck’s horsepower and fuel efficiency.

Mild Exhaust Tone. The Flowmaster 70 Series Oval Muffler is constructed of aluminized steel and has a 3-inch diameter. While the outlet is wide, the muffler produces a mild exhaust tone that is quiet both inside the cabin and out. Some welding and cutting is required to install the muffler, as it is not a direct bolt-on fit.

Warranty Information. The Flowmaster Oval Muffler includes a limited lifetime warranty. Please check the manufacturer’s site for details.

Modifications Required. This Muffler was designed to be used on mutliple applications, as it is not a direct fit replacement part. In order to install this Muffler properly on your vehicle, some modifications to the exhaust system will be required.

Application. The Flowmaster 70 Series 3-Inch Center/Offset Oval Muffler fits all 2007-2019 GMC Sierra 1500 models.

Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Details

MPN# 53072

CA Residents: WARNING: Cancer and Reproductive Harm -

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  • (1) Muffler
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