M4

For those wanting a more aggressive exhaust option, Dinan now offers the Free Flow Stainless Exhaust System. Dyno tuned for maximum exhaust flow with minimum backpressure, this exhaust system is designed to provide a more aggressive sound under acceleration, while reducing drone inside the vehicle, thanks to computer controlled valves that limit noise during low speed driving and open fully during high-load conditions to allow free flow. The exhaust gasses exit through larger laser engraved polished quad tips. Learn More