Normally during "up shifting" you must roll off of the throttle and pull in the clutch in order to engage the next higher gear. In racing (both drag and road race), split seconds count. Rolling off the throttle, even slightly, slows your times and can be the difference between winning and losing. Dynojet Pressure Shift Sensor: Races are won or lost in fractions of a second. Dynojet's Quick Shifter (DQS) kit allows full-throttle, clutchless upshifts in racing and performance riding applications. The shift rod pressure / tension sensor kit is a universal sensor that mounts to the shift rod in either a push or pull configuration. Mount one end to the shift lever and the other to a fixed point on the chassis. Plugs directly into the Power Commander expansion port with no re-wiring required.