{"product_id":"kooks-2007-jeep-wrangler-jk-w-ls-swap-3in-cat-back-ss-exhaust-must-use-w-kooks-headers","title":"Kooks Headers 3in SS Cat-Back Exhaust (F\u0026R): Fits Jeep Wrangler JK LS Swap (07-18) w\/ LS Swap","description":"\u003ch3\u003eKooks Headers Cat-Back Exhaust System\u003c\/h3\u003e\u003cp\u003e2007–2018 Jeep Wrangler JK, 2005–2010 Jeep Grand Cherokee LS Engine Swap\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e37104100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Kooks Headers 3-inch Stainless Steel Cat-Back Exhaust is engineered specifically for Jeep Wrangler JK models from 2007 to 2018 and select 2005 to 2010 Jeep Grand Cherokee vehicles equipped with an LS engine swap. Designed to complement Kooks Headers and Y-Pipe setups, this exhaust system delivers enhanced exhaust flow, improved power output, and a distinctive aggressive sound tailored for street, race, and off-road enthusiasts. Crafted for those who demand high performance and durability, this cat-back exhaust is ideal for Jeep owners upgrading to LS powertrains seeking a reliable and powerful exhaust solution.\u003c\/p\u003e\u003cp\u003eBacked by over 50 years of racing heritage and innovation, Kooks Headers and Exhaust continues to lead the industry with products that combine precision engineering and handcrafted quality. This cat-back system is a perfect match for LS-swapped Jeep Wranglers, providing a robust exhaust path that maximizes engine efficiency and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 3-inch stainless steel cat-back exhaust system offers a range of features designed to optimize your LS-swapped Jeep’s performance and sound:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3-inch mandrel-bent tubing constructed from 16 gauge 304 stainless steel for superior strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eOval muffler measuring 4\" x 9\" x 14\" for balanced sound attenuation and performance\u003c\/li\u003e\n\u003cli\u003eDesigned specifically to be used with Kooks Headers and Y-Pipe for seamless integration\u003c\/li\u003e\n\u003cli\u003eEngineered for LS engine swaps using RPM Extreme or similar LS swap kits\u003c\/li\u003e\n\u003cli\u003eRecommended minimum 2-1\/2 inch suspension lift to ensure proper fitment and clearance\u003c\/li\u003e\n\u003cli\u003eHandcrafted in the USA with meticulous attention to detail and quality control\u003c\/li\u003e\n\u003cli\u003eDyno and race tested to ensure maximum power gains and durability\u003c\/li\u003e\n\u003cli\u003eLimited lifetime warranty to the original purchaser, reflecting confidence in product longevity\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of Jeep Wrangler JK trims including Rubicon, Sahara, Sport, Unlimited, and more\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Kooks cat-back exhaust system is built from premium 304 aircraft-quality stainless steel, known for its excellent resistance to rust and corrosion even under harsh off-road conditions. The 16 gauge tubing is mandrel bent to maintain consistent diameter throughout bends, ensuring unrestricted exhaust flow and minimizing turbulence. The oval muffler is designed to provide a perfect balance between sound suppression and performance, delivering a deep, aggressive exhaust note without excessive drone.\u003c\/p\u003e\u003cp\u003eEvery component is handcrafted in the USA by skilled technicians, continuing Kooks’ legacy of precision manufacturing and family-owned craftsmanship. This attention to detail guarantees a system that not only performs but also fits precisely with minimal modifications when paired with the recommended headers and Y-pipe.\u003c\/p\u003e\u003cp\u003ePerformance \u0026amp; Sound\u003c\/p\u003e\u003cp\u003eWhen combined with Kooks Headers and Y-Pipe, this cat-back exhaust system significantly improves exhaust scavenging, reducing backpressure and enhancing engine breathing. This results in increased horsepower and torque across the RPM range, especially beneficial for LS-swapped Jeep Wranglers tackling both on-road and off-road challenges. The exhaust note is aggressive yet refined, providing a powerful growl that complements the LS engine’s character without overwhelming cabin comfort.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis cat-back exhaust is designed specifically for Jeep Wrangler JK models from 2007 to 2018 and select 2005 to 2010 Jeep Grand Cherokee vehicles equipped with an LS engine swap. It must be used in conjunction with Kooks Headers and Y-Pipe for proper fitment and optimal performance. A minimum 2-1\/2 inch suspension lift is recommended to ensure adequate clearance and avoid interference with suspension components.\u003c\/p\u003e\u003cp\u003eDue to the custom nature of LS swaps and varying vehicle configurations, additional modifications or parts may be required for a perfect fit. It is strongly advised to consult with Kooks Headers and Exhaust before ordering to confirm compatibility and installation requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3-inch stainless steel cat-back exhaust system\u003c\/li\u003e\n\u003cli\u003e3-inch mandrel bent 16 gauge 304 stainless steel tubing\u003c\/li\u003e\n\u003cli\u003e3-inch oval muffler (4\" x 9\" x 14\")\u003c\/li\u003e\n\u003cli\u003eHardware and clamps for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis exhaust system is ideal for Jeep Wrangler JK owners who have performed or plan to perform an LS engine swap and want to maximize power, sound, and durability. It is perfect for off-road enthusiasts, street performance drivers, and racers who demand a high-quality exhaust system that complements their LS powertrain and enhances overall vehicle performance.\u003c\/p\u003e","brand":"Kooks Headers","offers":[{"title":"Default Title","offer_id":47348719419604,"sku":"37104100","price":635.36,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0011830_56d2e35edfb5b13fe59092873cc13dda_746df580-7132-4f9d-a20d-153346009c53.webp?v=1771724458","url":"https:\/\/fasthemis.com\/products\/kooks-2007-jeep-wrangler-jk-w-ls-swap-3in-cat-back-ss-exhaust-must-use-w-kooks-headers","provider":"FastHemis","version":"1.0","type":"link"}