also i have heard lots of things about the oil sensors or what not. pretty much if bmw could of made the exact same car with different ecu technology but with 50 more horse to the wheels why wouldnt they? to me there is something fishy to be uncovered here and im curious as to what it is. i have heard rumors that this mod will be pushing the car too hard and internals may get too hot. i would really like to hear back from someone that has 5k or so miles with this mod....