Hey guys ... im in the same confusion, my r34 gtt is running a hks gt-rs turbo and reads about 12-13 psi boost on stock gauge. My exhust is a full kakimotor 3 or 3.5 inch but STOCK DUMP that is missing two bolts as well haha :S... is this ristricting my exhust flow, so not getting full potential of the exhust?
this is realy important for me becouse my mates selling his dump pipe of his fujitsubo full exhust i was going to buy it today in couple of hours, so if i could get a quick reply would appericiate it guys.
BTW is it hard to install? howmuch would it cost if mechanic does it??