FD motorsports dump pipes are available in both 3 inch and 3.5inch. If you are looking for the highest flowing dump pipe available for your twins car, this is it. RHD & LHD compatible.
As with anything cad designed, considering the room available every part of this dump pipe has been optimised for flow, this is also the only dump pipe available that fits the Fdmotorsports #SP twins. Did I mention it was 347 Cast stainless, far superior to any fabricated item made up until this point.