I have an 06 WRX and after ripping donuts for a bit, my car is running way different. It's almost like a vacuum but i cannot find it. I took in to a shop and replaced the high pressure hosing from the intake manifold to the top mount, because it was rippethinking that was it. Doesn't idol right sometimes, feels like no power when boosting, bogs and a loud noise is made when boost accumulates like its sucking in air. Help me figure it out before i have to take it in please. THANKS, SEAN