This durable, purpose-built, cat-back exhaust system improves clearance over rough terrain for the Jeep JK adventurist who wants it all. Large, 2 ?" to 3" mandrel-bent 409 stainless steel tubing outflows the restrictive OE exhaust to increase torque and horsepower while a free-flowing muffler delivers a powerful, performance tone. The ROCK BASHER'S unique pre-axle turn down tip handles off-road obstacles and utilizes factory mounts for a qui ck and simple install. This cat-back exhaust system has a turn down tip under the vehicle, before the rear axle, to take on rough terrain and off-road obstacles. No more smashed tips. An 18" long, free-flowing stainless steel muffler is used to absorb high pitch tones producing a powerful sound whi le unleashing all available horsepower and torque. ROCK BASHER 3 IN 409 Stainless Steel Cat-Back Exhaust System Jeep Wrangler (JL) 18-24 V6-3.6L Jeep Wrangler (JL) 18-24 V6-3.6L