I'm looking for a bit of advice here, what do you think...
So im running a B18C Type R with a Mugen air box, ITR T/B, skunk2 inlet, spec 3 Buddyclub cams, PLM RMF Manifold which is 2.5" at flange and then a 70mm Skunk2 Catback
I have a brand new skunk2 pro series 68mm T/B lying around and...