GReddy Exhaust Systems are some of the finest exhausts available today. All GReddy exhaust systems (SP, PE, MX, EVO, & G2) are complete cat-back units, which do not effect emissions related hardware. Each specific application bolts-on, using factory mounting hangers. Our unique straight-though design allows for the perfect compromise between Power, Torque, and a deep- throaty Sound. Although mufflers can look the same from the outside, our internal construction sets our systems apart. With countless hours of testing the performance and sound, our expert Exhaust Technicians tune each application by varying the size or sequence in the perforated tubing and/or changing the amount of non-corrosive stainless-steel mesh and sound-suppressing composite cube packing material within each muffler can. The quality and workmanship extends through the outer shell of the system. With laser-cut, computerized mandrel bent aluminized tubing, thick flanges, OEM style hangers, and a polished stainless-steel muffler can and tip, GReddy exhaust look as good as they perform. Each system type (SP, PE, MX, EVO, & G2) varies in the outer look as well as flow characteristic for each application. Check Greddy's website for a complete listing of GReddy's high performance exhaust systems.