I'm building an 818R, and am using a 257/205 hybrid motor with forged internals. I have a FMIC which obviously won't work on a rear engine car. I'm probably going with either a stock or an STi one.

Mated to that, I have a TurboXS 50/50 hybrid BOV. I'm not quite solid on the implications of the hybrid system, but (in layman's terms) I believe it recirculates under low pressure and vents to atmosphere under high pressure.



What are the issues with running something like that on our cars with a well-done dyno tune? Versus a stronger BPV, let's say.


Thanks for the advice!