Some food for thought. Here was one of the 518rwhp dyno pulls done at 7psi (note max torque is roughly 400ftlbs not 453). We would lose the rpm pickup every so often as you can see in the graph. Most people think a turbo will be more laggy than a supercharger. As you can tell from the graph there is no lag whatsoever with this kit. Anyone have a supercharged graph at 7psi of boost on the stock motor they want to post up?