Installed an Injen IS intake system, GRddy Intercooler Piping, and a Greddy RS BOV; at higher range r.p.m's...4-8... the car is running higher boost, and after the blow off, the car shuts off... Everything replaced the stock exactly, except for the BOV. camne with one port to attatch a vaccum line to the the manifold, and it came with extra vaccum line, and two T-connectors...i did not use the extra line and the connectors, so the BOV is just connect to the manifold... what the hell is going on with my car??...any help please!

 

Your venting to the atmosphere. When you ordered you intake did you specify vent to the atmosphere or dump back into the intake?

 

It specifies for the car, and for aftermarket BOV