watever SCC said about the si or any of the other cars, dont listen to them. they dont know sh*t about cars. i am an 02 si owner and im happy with it but if i had a choice i would have kept my 97 4dr civic and drop a b18c5 motor. if you want more opinions, go to www.ephatch.com and look around. as for performance, the k20 motors have alot of potential. some guy with an 02 si with i/h/e ran constant 15.0 and i think a best of 14.8. but he is probably a damn good driver. go to that website and you can find his timeslips in the dragracing forum.