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

Market Price $605.99 You Save 12% ($71.00)
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$534.99 (each)

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  • Item S501118
  • MPN# S5080409

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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 Tip
    • 16-Gauge Tubing Walls
    • Single Side Exit
    • High Flow Muffler
    • Deep, Mellow Exhaust Note
    • Hardware Included
    • Limited Lifetime Warranty
    • Fits 2014-2018 4.3L GMC Sierras
    Great-Sounding System. Balancing the scales between the need for a durable system and a good fit for your budget, the MBRP XP Series 3-inch Single Side Exit Cat-Back Exhaust for your 2014-2018 GMC Sierra is made from medium-grade T-409 stainless steel. While this steel often discolors, it won't rust or corrode, and the T-304 stainless used for the highly polished tip will never fade or dim. You may see up to +5-10% horsepower and torque gains as the system's high outflow drains off backpressure and lets the engine run freer and stronger, along with +1-2 mpg gas savings. The sound is the heart of the XP Series, though – changing the exhaust note to a deeper, fuller rumble that remains smooth and pleasing.

    Sturdy Build. The T-409 stainless steel construction renders this MBRP XP Series Cat-Back mostly immune to rust and corrosion, as recognized by MBRP's limited lifetime warranty. The 3" piping features 16-gauge walls for extra burliness, while the 4.5" exhaust tip is mirror polished aerospace quality T-304 stainless steel.

    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 Single Side Exit Cat-Back Exhaust designed to fit with all of the cab and box configurations available for the 2014-2018 GMC Sierra's equipped with a 4.3L engine.

    Fitment: 2014 2015 2016 2017 2018 Details

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

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    Customer Reviews (3) Write a Review

    Overall Rating 4.3

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Loudness / Volume 3.5 3.5
    • Exhaust Note 4 4
    • Fit & Finish 3 3
    • Bang For Your Buck 4 4
    • Performance Gain 4 4
    • Fit 5 5

    • 5/5

      Installation Time: Less than 1 Hour

      May 29, 2018

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

      Awesome System!

      This is a great kit, very easy to install. Perfect low tone for a truck and glad I went with the all stainless steel.


      Year: 2014 Submodel: SLE Engine: 5.3L V8

      Helpful (3)

    • 3/5

      Installation Time: Afternoon

      April 07, 2018

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

      not impressed

      i have a crew cab short box and the exhaust did not fit the truck like the directions stated the pipe that went over the axle was to long causing an issues with the exhaust hangers towards the back. now the directions says if you have a CREW CAB SHORT BOX YOU DO NOT HAVE TO CUT THE EXHAUST PIPE. In my cause i did because the one pipe was different. So an hour job to me about 4 hours to finish. i would have returned the exhaust however the directions only give actual measurement for the pipe that runs from the converter to the muffler because you do have to cut it if you have a different cab and box configuration. So not knowing one pipe was not right i cut out my factory exhaust. So at that point i had to make it work. Not knowing the measurements of all the pipes i had to measure and cut a couple times but i got it to fit correctly. i like the sound but wish i would have gone with a different brand do to fitment issues


      Year: 2018 Engine: 5.3L V8

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      March 24, 2018

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


      Easy to install. Looks great and sounds great. Exhaust note is deep and throaty.


      Year: 2017 Submodel: LT Engine: 5.3L V8

      Helpful (3)

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