for the past couple of days when i'm crusing at 60 thru 80 mph and i give it WOT i feel no power ?? feels like i left of the gas and is crusing. is it not downshifting in the right gear or is there something wrong with my supercharger ?? the rpm goes up slowly. but when i'm at like 40 or so and give it WOT then i feel the boost kick in and feel the power. PLEASE HELP !!!!!!! WHAT IS WRONG WITH MY CAR ??? OHH YEAH IT'S A SLK 32 AMG.