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Gibson 3-Inch Single Aluminized Exhaust System; Side Exit (07-13 4.8L Sierra 1500)

Item S502038
AmericanTrucks no longer carries the Gibson 3-Inch Single Aluminized Exhaust System; Side Exit (07-13 4.8L Sierra 1500). Please check out 2019-2021 GMC Sierra Exhaust Systems for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation


    • More Horsepower and Torque
    • Rumbling Exhaust Note
    • Single Side Exit
    • Superflow Muffler
    • 3" Mandrel Bent Aluminized Steel
    • 4” Stainless Steel Tip
    • Easy Install
    • Limited Warranty
    • Fits 2007-2013 4.8L GMC Sierras


    More Power. One of the best ways to make more power for your GMC Sierra is by bolting on this 3 in. Single Aluminized Cat-Back Exhaust System. It goes on just like the stock system, but removes flow restrictions, leading to better horsepower and torque output. Not only that, your 4.8L will sound more aggressive, thanks to the sporty exhaust note. A baffled and chambered muffler with no packing is part of the reason for this quality. That being said, this system doesn't create annoying interior drone as you cruise, so it's comfortable and practical.

    Solid Quality. This entire system is made of aluminized steel. The piping measures 3 inches in diameter, but the tip is 4 inches and features a polished finish. This cat-back is backed up by a manufacturer's limited lifetime warranty.

    Practical Design and Simple Installation. Instead of rerouting the exhaust system and requiring heavy modifications, this system uses the same mounting points and even exit location as the stock system. That means an easier installation with zero cutting or welding. All the hardware you need to get the system in place is included.

    Application. This Gibson 3 in. Single Aluminized Cat-Back Exhaust System with a Single Side Exit is designed to be used on the 2007-2013 4.8L GMC Sierra's with the following cab and box configurations.
    • Regular Cab with the Standard Box
    • Extended Cab with the Standard Box
    • Crew Cab with the Short Box

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    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Headpipe
    • (1) Superflow Muffler
    • (1) Over Axle Pipe
    • (1) Exit Pipe
    • (1) 4" Tip
    • Installation Hardware

    Reviews of Gibson Exhaust Products (16)

    Reviews of Gibson Exhaust products have an average rating of 4.8 out of 5

      Questions & Answers

      10 More Questions

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