thanks james,i tried searching for nevs guide the other day but i think theres somthing wrong with the search it wont bring it up,ill try again now
I used 63mm pipework and a 63mm to 57mm reducer without any issues.
Phil would a battery still fit with the pipes like that? If it does I'm redoing my hot side pipe like that as its less of a restriction than mine.
Upper IC hoses are 63mm. On the driver's side you join to the existing rubber hose going down past the washer bottle. On the passenger side you join to the plastic MAP sensor pipe, or replace this wit the forge item and connect to that.
Max thickness IC you want is around 75mm as that is the max clearance behind the crash bar. Try and get 63mm inlet and outlet, although I have 76mm in and outs with reducers to 63mm.
What piping did you lot use as I can't decide what bends etc I need ?