This awesome Catback exhaust from Borla will give your�1986-1991 Chevrolet Corvette C4 the growl it needs! This system�features�Single Rectangle Rolled Angle-Cut tips, and is�built from all 304 stainless�steel. This system from Borla features there S-Type mufflers for a more aggressive tone over the touring but not as aggressive as the Atak.