The Dinan Free Flow exhaust system is built to Dinan’s exacting quality specifications and is constructed from 100% 16 gauge 304 stainless steel. The system is available with either black ceramic coated or polished quad 3.5” tips. Owners can expect to see gains of 8hp at 6000 rpm and 7 lb-ft of torque at 6000 rpm with no other modifications though the system is designed to pair ideally with the DINANTRONICS piggyback ECU for maximum performance.