I know, blew it out 2 times within 6 months, I was running no more than 9 lbs of boost. all I had was a manual boost controller and a 3" exhaust( 3" dynomax muffler and 3" pipe from where the wastegate pipe and turbo pipe meet, no cat, no resenator) But I guess I always drove it hard and was always on the boost. and the car does well over 140, I know taht too. the first day I owned the car I got it up to 138 , no problem. I think the highest I hit was aroung 146. I'm a speed freak too. I was thinking about converting it to a 5 speed but then my 745i had a misunderstanding with 2 poles and 2 other cars so right now we are looking for a straight body