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MBRP 3 in. XP Series Dual Exhaust System - Side Exit (14-18 4.3L Sierra 1500)

Market Price $712.99 You Save 12% ($83.00)
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$629.99 (each)

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  • Item S501122

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    Features & Details

    • XP Series Exhaust System
    • 3" T-409 Stainless Steel Mandrel Bent Tubing
    • Mirror Polished T-304 Stainless Steel Exhaust Tips
    • 16-Gauge Tubing Walls
    • Split Side Exit
    • High Flow Muffler
    • Deep, Mellow Exhaust Note
    • Hardware Included
    • Limited Lifetime Warranty
    • Fits 2014-2018 4.3L GMC Sierras
    Superior Exhaust. A split side exit has several big pluses, including a deeper, richer exhaust sound and a fiercer, bolder look for your 2014-2018 Sierra and the MBRP XP Series 3-inch Split Side Exit Cat-Back Exhaust offers both along with premium quality materials and build. MBRP's exhaust system generates a rich, mellow exhaust note that is an improvement over stock without being earsplitting. Throttle response, horsepower (+5-10%), torque (+5-10%), and fuel mileage (+1-2 mpg) all gain from the installation, which pulls away exhaust fume backpressure so the engine runs more freely. The cooling effect even lessens the risk of breakdown and helps oil and lubricants last longer.

    Quality Manufacturing. MBRP makes the XP series out of T-409 stainless steel, a type that will last rust-free for a truck's lifetime (though it may discolor). The tubing is 16-gauge 3" pipe, with mandrel bends that minimize restrictions and turbulence in the exhaust flow. The 4.5" tips are made from gleaming, polished T-304 aircraft grade stainless steel that doesn't tarnish like T-409.

    Easy Installation. The installation process of MBRP Cat-Back Exhaust is easy and the exhaust system can be installed with common hand tools. The bolt-on, no weld design provides you with a hassle-free installation process that can be completed in approximately 1-2 hours. Depending on your cab and box size, some cutting to the piping may be required.

    Application. The MBRP XP 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 that are powered by the 4.3L engine.

    Fitment: 2014 2015 2016 2017 2018 Details

    MPN# S5082409

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Muffler
    • (1) Extension Pipe
    • (2) Over Axle Pipes
    • (2) Tips
    • Installation Hardware
    Installation Info
    Tech Specs
    Will it fit my Sierra 1500?

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          Customer Reviews (2) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Afternoon

          • Loudness / Volume 4 4
          • Exhaust Note 5 5
          • Fit & Finish 5 5
          • Bang For Your Buck 5 5

          • 5/5

            Installation Time: Less than 1 Hour

            October 21, 2018

            Review from MBRP 3 in. XP Series Dual Exhaust System - Side Exit (14-18 5.3L Silverado 1500)

            Awesome !

            I do a lot of research and I feel like American trucks has a awesome website with install videos. I’m overly pleased with my new exhaust! Came fast, it’s the perfect amount of sounds to get your stock truck sounding like a real truck after an cold air intake upgrade as well! No real loud drone just when you take off you hear it


            Year: 2018 Submodel: LT Engine: 5.3L V8

            Helpful (10)

          • 5/5

            Installation Time: Afternoon

            May 07, 2018

            Review from MBRP 3 in. XP Series Dual Exhaust System - Side Exit (14-18 5.3L Silverado 1500)

            MBRP 3" XP on 2014 Chevy Silverado

            I was very pleased with the quality of the exhaust system and the look once installed. The tone of the exhaust is very throaty, a little more than I expected as there is a definite drone noise inside the cab. I would also recommend that if your truck is a few years old, you should purchase a new clamp that attaches the catalytic converter to the main extension pipe.


            Year: 2014 Submodel: LTZ Engine: 5.3L V8

            Helpful (11)

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