BMW Tune - Sprint Booster
The BMW Sprint Booster improves acceleration by continuously measuring and converting the digital signal provided by the ETC's potentiometer, and providing the ECM with a new and altered signal. (ok....what does this actually mean?). Think about a 100m race, your BMW is similar to the runner, while the Sprint booster does not make the car faster (not a steroid to make the runners go faster), the BMW Sprint Booster is like a tool that improves the reaction time between the shot of the gun and the runner taking off. So in nut shell, you feel that you are taking off much earlier and faster.