Get the Kooks 3"x 3" GREEN w/Cats Stainless Steel X-Pipe for your Kooks Headers. It includes 3" x 2 1/2" Mid-Pipes for connecting to OEM Style Exhaust.
The EPA approved Ultra High Performance "GREEN" Catalytic Converters are a performance upgrade. Standard catalytic converters are rated for up to 600 horsepower, while the "GREENCats" are rated to 900 horsepower.
*These products are NOT legal for sale, installation, or use on a licensed vehicle in the state of California, and they do NOT meet CARB compliance