Free Shipping On Orders Over $75. Details

Talk to a Sierra Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $6,500 in Store Credit! Enter Now >

Kooks 3 Inch Green Catted Y-Pipe (07-08 4.8L, 5.3L, 6.0L Sierra 1500 w/ Long Tube Headers)

Item S500728
AmericanTrucks no longer carries the Kooks 3 Inch Green Catted Y-Pipe (07-08 4.8L, 5.3L, 6.0L Sierra 1500 w/ Long Tube Headers). Please check out 2019-2021 GMC Sierra Mid-Pipes for an updated selection.
Call a Sierra Enthusiast at 1-888-706-1096
M-F 8:30A-11P, Sat-Sun 8:30A-9P

    Product Information

    Features, Description, Q&A, Specs & Installation


    • Wide 3” Diameter Pipe
    • Stainless Steel Construction
    • EPA Certified Catalytic Converters Included
    • 49-State Legal
    • High Performance Enhancement
    • Requires Kooks Long Tube Headers
    • OEM Outlet for Use with Stock Exhaust
    • Fits 2007-2008 4.8L, 5.3L and 6.0L GMC Sierra's


    High-Quality Exhaust Addition. For your engine to run powerfully, it must produce exhaust. Exhaust is bad for the environment and when it doesn't flow efficiently out of your rig, can minimize your truck's performance. This Kooks 3 in. Green Catted Y-Pipe, used with Kooks headers only, can help improve your engine's exhaust efficiency and enhance your rig's performance all at once.

    High-Efficiency Design. Legal in 49 states, this Y-Pipe is a convenient option for many trucks. Its included catalytic converters are EPA certified as Ultra High-Performance GREEN parts. The pipe ultimately produces emissions in a way that is better for the environment without hindering the engine.

    High-Performance Enhancement. To boast both high-performance and high-efficiency qualities, this pipe has a wide 3-inch diameter to promote a high-exhaust flow. It's made from stainless steel for durability as well. The pipe fits the OEM outlet for stock exhaust, allowing for seamless integration into your truck's existing system.

    Application. The Kooks 3 in. Green Catted Y-Pipe is designed to be used on the 2007-2008 4.8L, 5.3L or 6.0L GMC Sierra's equipped with a pair of Kooks Long Tube Headers.


    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Y-Pipe

    Questions & Answers

    10 More Questions

        Related Sierra 1500 Categories