2.5" CUT AND CLAMP RESONATOR DELETE X-PIPE FOR 2015-2018 MUSTANG GT 5.0L V8 Replacing stock mid-pipes with a resonator delete X-pipe is an ideal upgrade for those who are looking for improvements on performance and sound but do not necessarily want to modify the entire exhaust system. That being said, combining the resonator delete X-pipe with aftermarket axle-back will deliver even more horsepower and race car growl over the stock exhaust configuration. This PowerGo resonator delete X-pipe for Coyote powered S550 Mustang GT features 2.5" piping for ease of use with stock exhaust as well as aftermarket products with the same size. It utilizes the modern X crossover pipe design to add a loud and raspy note to the sound of exhaust. The rear ends are expanded and slit to allow a slip-on fit to any 2.5" axle-back. The piping is constructed from 16-gauge(1.59mm) 409 stainless steel for a balance between durability and affordability. It is fully mandrel bent to maintain high flow rate. IMPORTANT (*) This product fits GT 5.0L V8 models only. (*) Installing this product requires cutting the stock exhaust system. (*) Using this product with aftermarket exhausts that are not 2.5" will require additional parts or modifications.