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Kooks GREEN Catted H-Pipe (05-10 GT w/ Long Tube Headers)

Market Price $1,322.99 You Save 12% ($153.14)
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$1,169.85 (each)

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  • Item 390849

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Ship to: Ashburn - 20149
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    Features & Details

    • Durable Stainless Steel Construction
    • Kooks High-Flow GREEN Cats
    • Facilitate the 2-1/2" OEM Exhaust
    • Performance, Yet Street Legal
    • Works on Applications up to 800 Horsepower
    • Withstands Temperatures up to 1500 Degrees
    • Fits 2005-2010 GT and Bullitt Mustangs w/ Kooks Long Tubes
    Improved Sound and Performance. Let folks know that you are coming and most likely going to pass them with your 2005-2010 Mustang GT equipped with Long Tube Headers and a Kooks GREEN Catted H-Pipe that is 49 state street legal. The H-pipe is specifically designed to replace the factory catalytic converters and facilitate the installation of aftermarket long tube headers. The Kooks GREEN Catted H-Pipe is a great option for Mustang enthusiasts that want a daily driver that still performs and sounds good on the track or drag strip. The H-pipe produces a deep powerful tone and the catalytic converters are 49 state EPA certified.

    Durable Long Lasting Construction. This Kooks GREEN Catted H-Pipe is constructed using long lasting stainless steel. This material is durable and rust resistant to withstand the elements and temperatures up to 1500 degrees.

    Easy, Bolt-On Installation. There is no welding required to complete this exhaust modification. The Kooks GREEN Catted H-Pipe bolts-up to the required 3-inch Kooks long tube headers and fits the existing 2-1/2-inch OEM exhaust system. The pipe is secured with exhaust clamps which are provided.

    Application. This Kooks GREEN Catted H-Pipe is designed to fit all 2005-2010 GT and Bullitt Mustangs equipped with Kooks 3" Long Tube Headers.

    Fitment: 2005 2006 2007 2008 2009 2010 Details

    MPN# 11313610

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Catalytic Converters
    • (1) Stainless Steel H-pipe
    • (2) Exhaust Clamps
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: H-Pipe Type Headers Required: Kooks Long Tube Headers
    Piping Material: Stainless Steel Piping Size: 2.5"
    Catalytic Converter: Yes Fitment: 2005-2010 GT, Bullitt
    Will it fit my Mustang?

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    Questions & Answers (4)

    4 Top Rated Questions

    Are these CA smog legal?

    • The Kooks GREEN Catted H-Pipe is 49 state street legal, but unfortunately would not pass emissions in the state of California.

    Helpful (0)

    I have an 06 GT just want to know if this Off-Road H-Pipe is able to be equipped onto my Borla ATAK Axel Back Exhaust System since I already have PYPES Standard Mid-Pipe but I’m thinking about switching over to between an X or an H Pipe but don’t know which Off-Road is the best? If any of you guys know which is the best, please let me know, thanks..

    • The Kooks GREEN Catted H-Pipe will work with the Borla ATAK Axle Back. The best mid pipe would depend on your preference and application. You can find all our H Pipe options for your 06 GT here:

    Helpful (0)

    Can I install SLP Loudmouths with these?

    • The SLP loud mouth mufflers can be installed with the Kooks GREEN Catted H-Pipe.

    Helpful (0) Show 1 more answer

    I have a 2010 gt, will I need a tune with these to prevent cel light

    • The Kooks GREEN Catted H-Pipe (05-10 GT w/ Long Tube Headers) should not make the MIL light come on. Though, it is a good idea to tune the car any time you are adding a part that changes the air flow.

    Helpful (0) Show 1 more answer
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    Customer Reviews (1) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Afternoon

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

    • 5/5

      Installation Time: Afternoon

      February 18, 2017

      Great !

      Friend put these on the mustang gt and they sound phenomenal. Deep muscular sound. Would recommend to anyone.


      Year: 2009 Submodel: GT

      Helpful (11)

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