all are constructed of high-quality lightweight T-304 austenitic stainless steel for durability, and boast aggressive looking dual split rear exhaust with polished-T-304 stainless steel tips. 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, easy bolt-on installation and enhanced fuel economy, the world's most winning exhaust continues to lead the industry it founded over 40 years ago.