This Borla(r) Cat-Back(tm) Exhaust for the original hot hatch is a high-performance single muffler system with patented technology that offers more power when you want it improved fuel economy when you need it. Superior-quality T-304 stainless steel is high on looks and durability yet low on weight for more spirited driving. Add the Borla(r) sound of power and aggressive dual 4" polished T-304 stainless steel exhaust tips and the result is a whole new driving experience. From the design characteristics of the inner cores to the amount of sound-absorbing composite filament all specifications of Borla(r) exhaust systems are tuned on a vehicle-by-vehicle basis for an optimum blend of performance and sound. Combined with an unrivalled Million-Mile Warranty distinctive motorsport styling and easy bolt-on installation the world's most winning exhaust continues to lead the industry it founded over 40 years ago.