The Axle-back kit offers an alternative to a complete Cat-back system. It's just the ticket for those looking for power enhancement and improved sound without busting the bank. With easy fit in mind, these systems are mandrel bent for maximum efficiency and include specially selected 3.00 in. Pro Series Shorty mufflers with attractive 4.00 in. polished stainless steel tips. This American Thunder system delivers an moderate performance sound, and like all Flowmaster systems delivers improved power, throttle response and mileage. Designed for an easy fit, the system includes all necessary parts and hardware for an easy, at home installation. Does not fit models with dual mode exhaust option.