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Flowmaster Super 40 Series Center/Offset Oval Muffler; 3-Inch (Universal Fitment)

Item S503485
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Market Price $115.20 You Save 12% ($13.25)
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$101.95 (each)

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Ship to: Ashburn - 20149
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • First-Rate, High Quality Oval Muffler
      • Designed to Enhance Vehicle Performance
      • Creates Bold Interior and Exterior Exhaust Sound
      • Durable 16 Gauge Aluminized Steel Material
      • Body Width: 9.5”
      • Body Height: 4”
      • Body Length: 13”
      • Inlet Diameter: 2.5”
      • Outlet Diameter: 2.5”
      • 3 Year Warranty
      • Universal Fitment; Modifications Will Be Required


      Bold Exhaust Sound. The Flowmaster Super 40 Series Center/Offset Oval Muffler – 3.0 inches was designed to enhance vehicle performance in your GMC Sierra 1500. It is a first-rate, high-quality oval muffler that is 9.5 inches wide. This muffler delivers a bold interior and exterior exhaust sound that will definitely make your GMC more unique and stand out.

      Superior Material. This 13-inch long muffler is made with only the highest quality 16-gauge aluminized steel to ensure that it will last for the long haul on your GMC. You can rely on the quality craftsmanship of this 4-inch high Flowmaster Muffler that has an inlet and outlet diameter of 2.5 inches that enhances the functionality and creates a sleek look with the muffler outlet.

      3 Year Warranty. This muffler has a three year limited warranty that covers any structural defects. 

      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 Super 40 Series Center/Offset Oval Muffler – 3.0 inch is designed to fit all 2007-2020 GMC Sierra 1500 models.

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      Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

      Flowmaster 953047

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler

      Customer Reviews (6)

        Reviews of Flowmaster Exhaust products have an average rating of 4.6 out of 5

          Questions & Answers

          10 More Questions