I have an HKS SSQV bov right now with the purple insert. I know it is pretty loud but I was wondering what the loudest bov on the market was. I know some people go for the sleeper, but I want something that is obnoxiously loud.

 

Turbo XS - RFL... .i'll let you work out what RFL stands for.

 

yours. but its pretty dumb question you want a loud BOV? lol for what? but i guess everyone has there own preference lol

 

the old greddy type S on high boost was the loudest i've ever heard in person, I've also heard the TurboXS RFL in person. It's loud but the pitch of the old type S just seems louder to me.

 

The RFL is what seems to be the loudest. I bought it for my tC and all I got was flutter. What setup do you have?