Dynojet 4-134 Quick Shifter Stand-Alone Kit for Harley-Davidson Big Twins (EV-6 Connectors)Product Details Upgrade your Harley Davidson with increased speed and racing ability with the Harley Davidson Quick Shifter Kit. This model plugs directly into the fuel injector for fast installation with no wiring or splicing needed. This shifter kit upgrades your bike for quicker, smoother shifting without having to roll off the throttle or pull the clutch. To use, you just put pressure on the shifter, this quickly suspends the fuel which makes for