Jetex stainless steel performance rear exhaust boxes are designed to fit to the standard factory OE exhaust system. All Jetex rear boxes are manufactured from T304 high grade stainless steel and are covered with a lifetime warranty. The Jetex performance back boxes are designed to be less restrictive and therefore release a moderate power gain approx 5%. You will benefit from a slightly deeper exhaust tone and there are numerous tailpipes to choose from. Awesome power, awesome noise, awesome looks!