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Flowmaster Super 40 Series Offset/Offset Oval Muffler - 3.5 in. (Universal Fitment)

AmericanTrucks no longer carries the Flowmaster Super 40 Series Offset/Offset Oval Muffler - 3.5 in. (Universal Fitment). Please check out 2014-2018 Sierra 1500 Exhaust for an updated selection.

Features & Details

  • Maximize Exhaust Flow
  • Enhances Sound
  • 3.5” Inlet/Outlet
  • Delta Flow Tech
  • Fully Welded
  • 409 Stainless Steel
  • Dyno-tuned
  • Limited Lifetime Warranty
  • Universal Fitment; Modifications Will Be Required
Swap for a Better Muffler. Your rig is complex. A number of parts work together to ensure it not only runs, but performs efficiently. Making upgrades can help improve its performance. This Flowmaster Super 40 Series Offset/Offset Oval Muffler, for example, is a high end muffler replacement. It is built specifically for pickup trucks and offers two gains every truck enthusiast can appreciate: better sound and better exhaust flow.

Increase Your Rig’s Rumble. One of the most iconic aspects of your rig is its aggressive sound. You can gain an even more intimidating tone with this muffler. Its Super 40 design ensures you’ll hear its deep, low rumble both inside of and outside of the cab.

Improve Exhaust Flow. This muffler also works to enhance exhaust flow. It has a 3.5” inlet and outlet for maximizing the amount of exhaust that gets in and out. With Delta flow technology and dyno-tuning, the design is highly efficient.

Strong Construction. Expect this smartly designed, effective muffler upgrade to last. The muffler is made durably out of 409 stainless steel. It is also fully welded for strength.

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.

Warranty Included. A limited lifetime warranty is included with this Super 40 series muffler. The manufacturer has some exclusions. See their information for details.

Application. When this Flowmaster Super 40 Series Offset/Offset Oval Muffler is installed on your 2007 to 2019 GMC Sierra 1500, your rig will experience performance gains.

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

MPN# 853548

CA Residents: WARNING: Cancer and Reproductive Harm -

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  • (1) Muffler
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