Headers, SS Long Tube, Kooks, 2004-07 CTS-V, 1-7/8" x 3", with Cats

Made in the USA, Kooks have had the reputation of manufacturing the highest quality custom stainless steel headers on the market. All headers are manufactured in 18 gauge stainless tubing with 3/8" thick mounting flanges and a 3" collector. All sets will include oxygen sensor extension harnesses, mounting gaskets, and all installation hardware. Requires modification of factory exhaust for installation. All Kooks headers must be used with Kooks connection pipes. Some header sets include connection pipes and High Flow Race Catalytic Converters with minimal flow restriction, connection pipes with Ultra High Performance GREEN Catalytic Converters with little to no flow restriction, or straight through connection pipes without catalytic converters, all connection pipes are designed to connect to the factory exhaust or mufflers. Kooks Headers and Exhaust EPA-Certified GREENCATS come with a 2-year limited replacement warranty. The standard High Flow Race Catalysts come with a 1-year limited replacement warranty. Vehicles equipped with a factory supercharger or turbocharger will only receive a warranty on Kooks Catalysts if they have the GREENCATS. There will be no warranty on our standard high flow catalyst if the vehicle comes equipped with a factory forced induction system. Furthermore, we recommend upgrading to the GREENCATS if your application will be producing more than 600 horsepower. GREENCATS can be installed on any of the Kooks exhaust systems.