SPD's 304 stainless high performance resonator cat-back pipe replaces your factory resonator pipe wi.. SPD's high performance stage 2 resonator cat-back pipe replaces your factory resonator pipe with a t.. We have redesigned our GX Series catback systems and will have them available to ship at the end of .. The exhaust system is one of the most important parts of any vehicle. It protects the driver and other nearby cars almost as much as the braking system does. If you want your car to take care of you, you need to take the best care of it.
Typically, that includes a mid-pipe, muffler, tailpipe and tips. Cat-backs generally yield increases in performance, due to the more efficient flow of exhaust through upgraded parts like larger diameter tubing and better flowing mufflers, as well as improved sound and reduced weight. For starters, the "cat" in catback exhaust system is short for "catalytic converter", a central part of your car’s emission control system, which cat back exhausts are fitted behind, hence the "back". This relatively simple mod helps to free up exhaust gas flow and improve the noise of your engine by swapping out part of your exhaust system with a specially designed