wow well unlike the other guy I dont see ebay and cardomain as perfomance sites to buy parts. To address the HP I take a note from Skunk2 Fit they built it cam valves, and turbokit on 3 cycinders motor wasnt running right they pulled a 150whp prob more on 4. A k20/k24 swap cost alot to do $8-10,000. I suggest you to turbo your car. check out skunk2.comhonda-tech.com(not hondatech) get an acccount and go under Fit/Jazz look at the FAQ and search before you as a questionjhpusa.com