all are constructed of high-quality lightweight T-304 austenitic stainless steel for durability, and all 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 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.