My friend just bought a 2002 cummins with a 6-speed. It already has a 4 inch straight pipe, a k&n filter, and he is getting gauges soon. He wants a chip but doesnt know which one to get. He wants alot of power, he likes to race, and he wants smoke. I suggested the edge comp or the smarty. How many horse does the smarty give, or is there something better.