Check out the new product from Raptor.
The Quick-kill" is a small 2.25" x 2.25" controller that allows full throttle, clutch less up shifting when combined with an air shifter setup. It kills the fuel injectors (4 or 8) or the main power feed to the ignition coil(s) for mere milliseconds for lightning fast shifts. Can be setup with or without the gear position sensor. For setups with a gear position sensor, the quick kill can be programmed for individual kill times per gear. Bright digital displays indicate current gear and kill time for that gear. Can set delay time to allow loading of the air ram before the kill event. Universal wiring harness. Delay and kill times adjustable in 1 millisecond (.001 second) increments for precise control of your kill times!