Kooks Stainless Steel 3" H-Pipe with Catalytic Converters for 2011, 2012, 2013 and 2014 GT500 Mustangs with Kooks Long Tube Headers.Compliment your Kooks Long Tube Headers with a Kooks 3" High Flow Catted H-Pipe. Kooks' h-pipe will fit any 2011-2014 Mustang GT500 with a 5.4L engine. The 3" inlet only connects directly to Kooks long tube headers (HDK10 and HDK11) and the 2-3/4" outlet will connect to your factory, or factory style, cat-back.
Kooks h-pipes are made from mandrel bent aircraft quality T304 stainless steel. Kooks only uses the highest quality stainless steel. Kooks systems are bolt-in and never require any cutting or welding. All necessary hardware is included.
Kooks has designed and produced a 400 cell count metallic high flow catalytic converter that is standard in every system. Most manufacturers build their catalytic converters with a 200 cell count catalyst which is supposed to be used for industrial applications, not automobiles. Kooks is the only company in the industry that has a 49-state EPA approved catalytic converter that can be used in any of their systems. This catalyst flows just as much as the standard high flow cats and significantly reduces the likelihood of a Check Engine Light illuminating.
Each Kooks exhaust system is designed specifically for the engine and vehicle it is built for. Kooks utilizes the firing order of the engine when designing their exhaust tubes. The most technically advanced equipment is used when designing Kooks exhaust systems. Every system is dyno and race tested to ensure the results are up to Kooks' expectations. This means Kooks can guarantee their exhaust makes the most horsepower and torque in the industry. All Kooks products are manufactured in a 45,000 square foot state of the art facility located in Statesville, North Carolina.
Kook's Headers has been in business since 1962. With over 50 years of header and exhaust knowledge, you're guaranteed the best quality products. Kooks is involved with all types of automobile racing and makes parts for the ARCA, Lucas Oil Series, IMCA, URA and many other oval style racing series. Kooks is also an official contingency partner with NASCAR. Drag racing was the back bone of Kooks but they also supply cars in the SCCA and NASA. Kooks is a top supporter of the NHRA, ADRL, NMCA, NMRA, Fun Ford Weekend, PTRA and many more.
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