My understanding is that the sprint booster will just be more responsive, as in right now if i put my foot down the car wont move for a split second where as with the sprint booster its much more responsive and will go the moment you push the throttle. 1/4 times work from the moment your car moves so the sprint booster wont help with that but maybe it would with street races? Thats just my perception of the sprint booster ive never had one though..