now, don't get me wrong, i agree phantom, 155hp is nice output, depending on your purposes. i, for example want a reliable, yet driftable 240, and in order to achieve this i want a ka-t. but thats just my opinion. put it this way. right now, all my car has done is a 5spd swap, 6 puck sprung clutch, aluminum flywheel, headers, exhaust and intake. of course i can brake my tires loose at times, but not reliably enough.