Can handle 20psi
its a garrett core bush bearing steel blades
can handle 250+
and straight bolt on for rb25..
PM Slide and ask him about LTHLRB's highflow, he made it for me.
The actuator now is set at 13psi for my car, its adjustable to whatever you want. Its a fully adjustable HKS item.
and no for the intake pipe, as it cost me close to 300 bucks to make it up