Originally Posted by HonduhPowa
Well I replaced my giant 4" turboxs downpipe with an invidia v2 downpipe, and replaced my up-pipe to turbo gasket as well and the exhaust leak sound I was experiencing is virtually gone!
I will go record that I'm experiencing this sound and it has gotten me going crazy trying to figure it out. I'm glad I found this in the search results. I just installed a cobb catted dp on my '07 wrx and like everyone is saying the sound only occurs low rpm's. On my factory installed boost gauge the flutter is prominent right before it hits 0. I installed a grimmspeed gasket with the dp check for leaks and nothing.
Honduh... I'll look into getting a gasket for my UP to turbo. Hopefully that'll help.