This 2.5 diameter performance Merge X - Pipe with Mid - Pipes creates power while adding a great sound to the C5 C5 Z06 Corvette systems. In testing, customers and racers alike noticed the power increase youve come to expect from BORLA, and all commented on the great exhaust tone being emitted. This sophisticated component (Part 60087) is a perfect compliment to the famous BORLA Cat - Back systems and is even lighter than the stock system, mainly due to the premium, high - quality T - 304 lightweight stainless steel used in every BORLA exhaust component. Additional attributes include an extremely simple, bolt - in replacement for the factory mid - pipe that further enhances that famous BORLA growl of power. Ultra - smooth mandrel bends ensure maximum flow power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. While many exhaust companies talk about racing, BORLA mufflers, headers and other exhaust components are tested every single weekend on race tracks around the world. The BORLA success is unmatched, and that effort transfers to the BORLA street systems. BORLA backs this part with an unequaled Million - Mile warranty