For performance, quality and sound there is nothing else like a Rush performance slip on muffler These mufflers have been engineered through thousands of hours of development Real world application and independent Dyno tested Guarantee you the best performance and sound on the market Rush mufflers feature baffles that are wrapped in a high tech material and designed to disperse heat and retain sound State of the art chroming process allows Rush to offer a 1 year limited warranty against manufacturer defects on Rush chrome products Rush mufflers will give you up to 5 horsepower increase straight out of the box Comes with 2-1/4" baffle