For people out there who are interested in fitting a BOV just want to say that I installed my stealth BOV. Its venting a little bit like 90-85% and plumbing back the rest i drove around didnt adjust the springs. No backfire,stalling,idle probs (knock on wood). Car feels a tiny bit less powerful probs cause im so worried bout stalling and stuff and looking to find a flaw im just paranoid. You can hear the turbo working more now. I guess the bov flows more air.