I have the RFL BOV and for last 4 months it sounded real nice and loud. Well this past weekend I left the car for my dad to drive while I went out and when I came back I notice that the BOV doesn't sound as loud as it used to. Now it sounds just like a rush of air and thats it. If I wanted the rush of air sound I would've gotten the HKS. I want that distinct RFL sound back. Can anyone help?

Check for boost leaks. That'll quiet it down real quick.

How many psi are you pushing?

Yeah man, check for boost leaks. When I had mine, my 3000GT BOV souded like a 'silent' fart. Check what vac. you are at idling, that's usually a good idea to see if you have a boost leak. Mine was idling at like 5 vac. when I had my leak.

at idle my vac is about 20. I boost fine. Right afte car starts and after the first gear boost, the sound is there. Afer that, it's gone. Sounds just like silent fart. I'm boostin about 6-8psi.