This BORLA Cat-Back 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 ?sound of power? and aggressive dual 4? polished 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 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.