This aFe Rebel Series axle - back exhaust is perfect for Jeep Wrangler JK owners who love off - road adventures and want to enhance their vehicle's performance and sound. Whether you're driving on rough terrains or cruising on the highway, this exhaust system will make your Jeep stand out. It fits 2007 - 2018 Jeep Wrangler JK models with V6 3.6L/3.8L engines. The system is made of 2.5in 409 stainless steel tubing and comes with quad 3.5in diameter polished exhaust tips. Installation is easy as it's a direct bolt - on system.