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STATESVILLE, NORTH CAROLINA (June 06, 2018) – The LS-swap is as popular as ever with Jeep Wrangler JK owners. It’s a relatively simple way to make modern, reliable V8 power. Now to make that swap even more friendly, Kooks Headers and Exhaust introduces complete header and exhaust kits for the LS-swapped ’07-‘18+ Jeep Wrangler JK.

The Kooks Headers and Exhaust long-tube headers are designed to provide clearance and finish off your swap with a clean look. Not to mention, the additional power. Kits are engineered to fit the RPM Extreme and Motech LS-Jeep-Swap kits.

Kooks Headers and Exhaust LS-Swap Jeep Wrangler JK kits will work with other LS conversion kits, but may require additional parts and fabrication. Depending on your application, cat-back systems and headers/connections-only are also available. The headers feature 3-inch female swivel seal connections, for additional flexibility when building custom exhaust or using the Kooks Headers and Exhaust kit.

Kits are available with high-flow race catalytic converters or the patented GREENCATS. The ultra-high performance GREENCATS are designed to lower emissions and can withstand up to 900 hp and 1500 degrees of exhaust gas temperature. GREENCATS come with a two-year limited warranty and race catalytic converters include a one-year limited warranty. Non-catalytic converter connections, designed for racing applications, are also available.


  • The complete kit provides easy installation
  • Additional clearance for tight-fitting LS engines
  • Extensive R&D invested in system
  • Available in three y-pipe options

Please note, GREENCATS are highly recommended for any forced-induction applications, and the use of high-flow race catalytic converters on forced-induction applications will void Kooks Headers and Exhaust catalytic-converter warranty.

The necessary installation hardware is provided in kits, including header gaskets, clamps and Stage 8 locking bolts (where applicable). Exhaust kits are available now at KooksHeaders.com or through a Kooks Headers and Exhaust dealer. Visit KooksHeaders.com for more information and select the “Dealer” tab to find a local dealer. Follow us on social media by searching @KooksHeaders on Instagram, Facebook and Twitter. Search @KooksTV on YouTube.


For the past 56 years, Kooks Headers and Exhaust has built a sterling reputation in the performance aftermarket and racing industry for its relentless dedication to quality, performance and innovation. All Kooks Headers and Exhaust products are hand assembled to the highest quality possible, with all exhaust tubing and flanges built in-house using aircraft-quality 304 stainless steel. All piping is pre-polished to provide a sheen which separates Kooks Headers and Exhaust from the competition. Kooks Headers and Exhaust products are proudly made in America.

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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.