Hey guys I have a quick question
So I installed my apexi intake today with no hitches, except the indicpherable japanese directions say to put this included aluminum restrictor piece in the line that runs from the bov to the intercooler y pipe. What is this restrictor for and should I put it in or leave it out? I had it in for a little bit and it just seemed to make my car run more rich inbetween shifts. Also if i am upgrading to the 550 tune do I need to upgrade my bpv or should it be fine for 18psi?