not boosting right...
the dealer will give you **** try to void your warranty and figure some other way to screw you over but if all your hoses are on bov and ic pipes and sleeves are on then one can never tell. good luck
if you are getting a really loud hissing noise it should be leaking on the intake side. the only time I have ever had a hissing noise was when the inlet pipe on th eturbo wasnt tightend down enough. it would whine like a supercharger and make no boost. sounds like it wants too but its just sucking in air and not boosting. when the intercooler hose pops off the throttle body, it just goes nowhere. and almost stalls. if you are a hands on guy, get under the car and take the plastic undertray off and inspect all your boost tubes.you can get a good look at just about everything from here. good luck


