Description
Unknown Performance exhaust systems are made from SUS304 stainless with the highest quality materials and TIG’d for precision welds. Evo 7-9 catback system is 3” in diameter and features mandrel-bent stainless steel piping for maximum exhaust flow and reduced back pressure. These exhausts are engineered to produce strong mid to top-end power gains, as well as an increase in horsepower and torque.
