just installed hks bov and debadged trunk
Stock bpv is best. I held over 19psi with it by just crushing the top with a hammer. It's difficult to tell if you have a bov leak w/o logs. Even if you reach target boost it could still be leaking.
i think for wrx's you need to find something that can hold less boost. what i mean is that if you get like a hks ssqv or greddy type rs, you should be pushing higher boost levels for them to be really efficient. Which means, you should get a tune and it might work out pretty well. If you get a tune by SS, he will laugh at you and tell you to keep the stock recirc-valve b/c that is the most efficient. He did that to me haha, but i resisted. i have the hks in my sti and it works great. the worx bovs seem pretty cool. In java's car, he wanted his to be quiet. he would rather hear the wastegate than his bov. I think it would sound sick if he had both noises come out.
also any suggestions on how the perrin sounds? and how does the worx sound.. more like a sneeze or a loud pitch eagle sound?