02 si hp mods
a stage 1 cam, (larger injectors, new fuel map but wouldn't recommend), upgrade ignition slightly, headers, new mani, throttle body, advance the timing a tad. idk the 02 si wheel baseline so i don't know what you need
Buy a K20A(or K20A2) head, intake manifold, and ecu. Hondata ecu upgrades(K-Pro). Good name brand header, a 4-1 1 piece design if you could, exhaust, and a tune and you will be alot quicker than you think.
Get a DC Ceramic header for it, if you're not wanting to turbo i'd get hondata and possibly a new rsx head. Only get the rsx head if you're wanting to go 300+ horses though, if not and you want to stay between 200-240 its not worth it. On mine I have i/h/e plugs wires etc., but in the next few weeks i'm going to port and polish my head, and see what else I can do to get hp gains without doing forced induction. I find turbo'd vehicles (no matter how well put together the turbo kit is) to be unreliable and so I don't want that on my si. I dunno if you're the same though, turbo might be the right setup for you
def. get the 4-1 headers, and 3 piece pulley set you'll get into the power band a lot quicker. unorthadox makes a good set, also i had trouble beating people untill i got a nos sneaky pete nitrous system its only 30 shot. and from what i read 30 shot doesnt hurt the k20 ( correct me if im wrong).k-pro is the best way tochip your ecubut its $1000. a friend of mine has a ctr head and his gas mil sux 19mpg but you might not care.



that'll get you up to more than 200bhp though.