okay I have a 2004 wrx sedan. I just recently put in a new tscubo up and when i went for the test drive I was really let down. The cars exhaust has a deeper tone now but when driving the mid range on the power band has no power!!! Great take off and great top end but no mids. its like the car is struggling to get to speed. My boost gauge stays at a steady 0.08 accross the rpms so I'm ruling out a boost leak. I thinking maybe I should change the sparks plugs? I've checked all the hoses and clamps after the turbo and I know I've tighten down everything before the turbo. Its really starting to frustrate me and Its making me not want to drive it at all. The car feel like it has half the power in the middle of the rpm range but boost is staying constant. PLEASE HELP WITH ANY INFO AND RELATED PROBLEMS. Thanks!!!!