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Flowmaster Outlaw Dual Exhaust System; Side/Rear Exit (09-13 5.3L Sierra 1500)

Item S503509
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Market Price $1,175.24 You Save 13% ($153.29)
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$1,021.95 (kit)

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      Video Review & Installation

      Product Information

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


      • T-304 Stainless Steel
      • Boost in Throttle Response, Horsepower, And Fuel Economy
      • Made in the U.S.A.
      • 409S Stainless Steel Mufflers
      • Lack Ceramic Coated 4-inch Double Wall Stainless Steel Tips
      • Limited Lifetime Warranty
      • Fits the 2009-2013 5.3L GMC Sierra 1500 Crew and Double Cab Models


      Genius by Flowmaster. The Flowmaster Outlaw Cat-Back Exhaust - Split Side/Rear Exit equips your 2009-13 5.3L Sierra 1500 with a throaty, aggressive sound with an immediate boost in throttle response, horsepower, and fuel economy. It is proudly made in the U.S.A.

      Constructed to Perform. This bolt-on cat-back exhaust is comprised of 409S stainless steel mufflers and black ceramic coated 4-inch double wall stainless steel tips for extra durability. It fits comfortably on Crew Cab and Double Cab models.

      Warranty. Flowmaster provides a limited lifetime warranty, which covers the product from defects in materials and workmanship. To learn more about what the warranty covers, please visit the manufacturer’s website.

      Installation. Installing this product takes about 2 hours with a medium level of complexity. All of the necessary hangers and hardware are included with detailed, step-by-step instructions. Users can also have it serviced using a professional installer or auto center.

      Application. The Flowmaster Outlaw Cat-Back Exhaust - Split Side/Rear Exit fits the 2009-2013 5.3L GMC Sierra 1500.

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      Fitment: 2009 2010 2011 2012 2013 Details

      Flowmaster 817688

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Front Pipe
      • (1) Inlet Pipe
      • (1) Muffler
      • (1) Right Tailpipe
      • (1) Left Tailpipe, Front Section
      • (1) Left Tailpipe, Rear Section
      • (2) Rear Exit Pipe (R/L)
      • (2) Side Exit Pipe (R/L)
      • (2) Stainless Tip
      • (1) Parts Kit

      Tech Specs


      Customer Reviews (100+)

        Questions & Answers

        10 More Questions

        Will It Fit My Sierra 1500

        • 5.3L V8 - 09, 10, 11, 12, 13

        Designed for Extended and Crew Cab Models.

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