With Dinan High Flow Middle Exhaust for the G30 M550i a smoother, fuller and more aggressive note are achieved along with a noticable increase in volume. The Dinan Middle Exhaust for the G30 M550i introduces a more aggressive tone and an increase in volume over the stock system. Coupled with the associated Dinan exhaust, the sound is further enhanced into a smoother, fuller and more aggressive growl that is becoming of the V8 powered sedan. This full mid-section kit removes the hydro-formed factory center section, including the resonator, and replaces it with larger 3 T304 stainless steel tubing for freer flowing capabilities. In place of the factory resonator, Dinan incorporates a beautifully crafted X-pipe made from mandrel bent tubing for minimum restriction unlike stamped X-pipes which are commonplace in the market. This sophisticated X is not only the focal point
