I recently purchased a 2002 WRX from the local dealer. After extensive problems with the car, they replaced the turbo free of charge. The car was a kick-in-the-pants to drive for about a week. Then it started making a rattling noise while accelerating, barely accelerates and produces a MAX indicated mpa of .03ish (below .05) in any gear. I could have sworn it was over .1 when I got it back from them initially. I took it back last night and they said they drove it and noted nothing wrong at all. Can someone tell me what the stock mpa should be at WOT? Is the dealer taking me for a ride here?