Up to 30% More Power!This Bully Dog propane injection kit provides your diesel engine with an temporary performance boost without major engine modifications, much like in the way nitrous oxide is used in gasoline burning engines for simple power gains. The propane acts as a catalyst to the diesel giving a more complete burn with less carbon build-up. The regulator features a specially designed manifold that utilizes engines coolant to ensure that all of the injected propane is vaporized before entering the engine. The kit is governed by a boost pressure switch and toggle switch located inside the cab, giving the user complete flexibility. The kit includes everything needed except for the propane storage tanks.