This aFe MACHForce XP exhaust is perfect for off - road enthusiasts and Jeep Wrangler TJ owners from 1997 to 2006. Whether you're hitting the trails or cruising on the highway, it'll give your vehicle a performance boost. The exhaust is made of 2.25 - inch mandrel bent 409 stainless steel, ensuring durability. It's easy to install, fitting into all factory mounting locations, and it produces a powerful sound while improving your rig's horsepower and torque.