Bang for the Buck Thread

O.P. says he wants a hp number that starts with a four.
So, 300 hp 360 (sounds like he already has one), plus 150hp nitrous kit
(bang for buck, well under a grand).
Result? 450hp, $2000 left over for slicks, a converter, and whatever else is necessary to go fast.
Bang for buck, nitrous is ALWAYS the winner.