with 250-300whp you will not have a beast by any means or even a fast car. your car will just be quick to some people. it's 2010 bro if you aint shooting for 400+ you aint doing much. people are making 250- 300 all day on the stock bottom end all the time now days. all you need is a decent size turbo, vitara's, eagles or fjt i beams rods, arp headstuds, bisi 2.4 cam, valve springs, and a good tuner. o and possibly a water/meth kit if you want to be really safe without using race gas for higher boost