Moto Tassinari Reed Valve Systems for V-Force 4X Oil-Injected V4X26AM-I Utilizes the OEM oil-injector providing for a straightforward installation, with no need to touch the oil line or injector and no bleeding necessary Time to liven up your TBI oil-injected motorcycle and give the crisper throttle response, wider peak power, extended reed petal life and increased horsepower