I am stage 2 with a cobb dp, HKS exhaust. As of lately, at idle.. and acceleration.. I have been getting a strange sound. The sound just goes faster with acceleration. I can't really pinpoint where it's coming from, but I'm guessing around the turbo somewhere. It kinda sounds like a loose belt or something like that.. but I'm pretty sure that's not what it is. The sound will go away when I put my foot on the clutch.. even if i barley press on the clutch.. the noise goes away. Any help would be greatly appreciated, I'd just hate to take it in to the dealership if somebody else has had this problem. Thanks in advance.