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Ford fans can now take their 2015 Mustangs to the next level of sound and performance with the announcement of Kook’s 2015 Mustang 5.0L complete exhaust system.

Kooks’ 2015 Mustang 5.0L long tube stainless steel headers come with either 1 ¾ inch or 1 7/8 inch primaries and 3 inch collectors. Other features include:

  • 3/8 inch laser cut flanges in the headers
  • Welded oxygen sensor bungs with scavenging spikes in the collectors
  • Ball-and-socket connections

Kooks’ new 2015 Mustang headers will connect at the factory connection point with OEM-style connection pipes, and will be available in Kooks’ ultra high-performance “GREEN” cats, standard race cats or without cats, providing customers with the performance gains from running Kooks’ long-tube headers, while still allowing customers to run another manufacturer’s cat-back exhaust system or factory exhaust. The new 2015 Mustang 5.0 exhaust system is made from Kooks’ CAD-designed and CNC mandrel-bent 304 grade stainless steel tubing and, as all Kooks products, manufactured right here in the USA.

Always with an eye toward innovation, Kooks also released a new COMP specific 3-inch complete exhaust system, designed to fit the Coupe and Convertible. Once the Kooks long-tube headers are installed, a full 3-inch Race X-Pipe connect to the headers with a ball-and-socket style connection. The 3-inch mandrel-bent 304 grade stainless steel tubing carries the exhaust all the way to the rear end, where a pair of Kooks’ 3-inch oval race mufflers hang, complimented with a set of 4-inch double wall tips and available in black or polished finishes.

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Warning / California (Proposition 65)

Proposition 65 requires businesses to provide warnings to Californians about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. These chemicals can be in the products that Californians purchase, in their homes or workplaces, or that are released into the environment. By requiring that this information be provided, Proposition 65 enables Californians to make informed decisions about their exposures to these chemicals. 

Proposition 65 also prohibits California businesses from knowingly discharging significant amounts of listed chemicals into sources of drinking water. 

Proposition 65 requires California to publish a list of chemicals known to cause cancer, birth defects or other reproductive harm. This list, which must be updated at least once a year, has grown to include approximately 900 chemicals since it was first published in 1987.

For more information, please visit www.p65warnings.ca.gov.

Warning / California (CARB)

California laws prohibit the use of any aftermarket exhaust part or system that modifies, removes or replaces original equipment catalysts unless the California Air Resources Board has issued an Executive Order regarding such part or system or unless the part or system is exempted by being used only on racing vehicles on closed courses. Neither Kooks Headers and Exhaust nor any of their subsidiaries make any representation that any of their parts or systems has received such an Executive Order or that any of their parts or systems conform with the racing vehicles exemption. The purchasers are entirely responsible for informing themselves of applicable California laws and to comply with those laws.

Unauthorized Vendors

Kooks products purchased through any unauthorized vendor (including but not limited to): Amazon and Maryland Speed will not be warrantied by Kooks. Likewise, returns from any unauthorized vendor will not be accepted by Kooks.