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MBRP 3-Inch Installer Series Dual Exhaust System with Polished Tips; Side Exit (14-18 5.3L Sierra 1500)

Item S501125
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$554.99 (each)

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      Video Review & Installation

      Product Information

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


      • Installer Series Exhaust System
      • 3" Aluminized Steel Mandrel Bent Tubing
      • Mirror Polished T-304 Stainless Steel Exhaust Tips
      • 16-Gauge Tubing Walls
      • Split Side Exit
      • Aluminum Silica Weld Reinforcement
      • High Flow Muffler
      • Deep, Mellow Exhaust Note
      • Hardware Included
      • 3-Year Warranty
      • Fits 2014-2018 5.3L GMC Sierras


      Power and Thrift. Offering the excellent sound and good performance boosts of the whole MBRP exhaust series in a low-cost aluminized steel format, the MBRP Installer Series 3-inch Split Side Exit Cat-Back Exhaust is your go-to option for an affordable upgrade to your 2014-2018 Sierra. Creating a full-toned but smooth and enjoyable growl, this exhaust makes you feel powerful without annoying your neighbors. The high flow that produces that sound also amps up performance, winning a bonus +5-10% torque and horsepower by easing backpressure for better engine aspiration. This also improves fuel use by +1-2 mpg and gives you better throttle response – as well as cutting the hazard of a breakdown.

      Cost-Effective Build. The aluminized steel used for the tubing in the MBRP Installer Cat-Back is 16 gauge, giving the 3-inch piping an extra measure of endurance. Aluminum silica defends the welds and seams, the spots most likely for rust to start. The 4.5" tips are T-304 stainless steel, which takes a flashing, glossy polish and doesn't darken or stain over time. Using the provided clamps and hardware, you can bolt this exhaust onto your truck in under 2 hours. The system comes with a 3 year limited warranty.

      Application. The MBRP Installer Series 3-inch Split Side Exit Cat-Back Exhaust is designed to fit with all of the cab and box configurations available for the 2014-2018 GMC Sierra's equipped with a 5.3L engine.

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      MBRP S5082AL

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler
      • (1) Extension Pipe
      • (2) Over Axle Pipes
      • (2) Tips
      • Installation Hardware

      Tech Specs


      Customer Reviews (100+)

        Questions & Answers

        10 More Questions

        Will It Fit My Sierra 1500

        • 4.3L V6 - 14, 15, 16
        • 5.3L V8 - 14, 15, 16, 17, 18

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