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AFE MACH Force XP 3-Inch Dual Exhaust System with Black Tips; Side Exit (14-18 5.3L Sierra 1500)

Item S501141
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Market Price $1,301.99 You Save 12% ($149.99)
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$1,152.00 (kit)

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      Product Information

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


      • Cat-Back Exhaust
      • T-409 Stainless Steel Construction
      • 3 in. Mandrel-Bent Tubing
      • Black 4.5 in. Stainless Steel Exhaust Tips
      • Exits Behind Each Rear Tire
      • 2-Year Warranty
      • Fits 2014-2018 5.3L GMC Sierras
      • Designed to fit Regular Cab Models Only


      Exhaust Power-Up. Creating a throttle that responds swiftly to your input, and beefing up the power of your 2014-2018 Sierra, the aFe Mach Force XP 3-inch Split Side Exit Cat-Back Exhaust with Black Tips is a bolt-on system focused on quality and results. This cat-back, sucking exhaust fumes out the tailpipe 29% swifter than the OEM exhaust, bleeds off backpressure so your GMC's engine reaches its potential, with +14 horsepower and +17 ft/lbs of torque gained. Lubricants also deteriorate more slowly with heat cut by 100° F. Topping off these benefits, the Mach Force adds a bold, macho exhaust note and looks great with its two black tips enlivened by laser-cut aFe badges.

      Aftermarket Excellence. aFe builds its Mach Force XP Cat-Back as a winner, using T-409 stainless throughout - which, though it will discolor, stubbornly defies rust and corrosion. The single-in dual-out muffler is a straight-through design, fully welded, while the 3-inch pipes feature mandrel bends. Supplied with bayonet hangers, 360° band clamps, and an extension pipe (for long bed/regular cab combos), this bolt-on part is easy to install. USA-made, it comes with a 2 year limited manufacturer's warranty.

      Application. The aFe Mach Force XP 3-inch Split Side Exit Cat-Back Exhaust with Black Tips is engineered to fit the 2014-2018 5.3L GMC Sierra's with the following cab and box configurations.
      • Regular Cab with the Standard Box
      • Regular Cab with the Short Box

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      Fitment: 2014 2015 2016 2017 2018 Details

      AFE 49-44071-B

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Cat-Back Exhaust System
      • Hardware

      Tech Specs


      Customer Reviews (68)

        Questions & Answers

        10 More Questions

        Will It Fit My Sierra 1500

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

        Designed to fit Regular Cab Models Only.

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