jemil118 wrote:why would you want an S15? They're extremely expensive. About 4500 dollars. They make about 260 hp, while the S13 makes 220 for about 2500. You can definitely get more than 260 hp with an S13 and some mods for 4500 dollars, plus you don't have to worry about that VTC( varibale timing)
S15 engines are rated at 245-250 hp and the s13 engines are rated at 205 hp.
But I recommend Phase2motortrend, Heavythrottle,and Cartune Motorsports.
I agree with the other guys though...I recommend you getting an s13/s14.