94 civic performance upgrades

hey, im gonna start adding some performance upgrades to my 94 civic EX. can anybody recommend anything? im already going to get a cold air intake and a catback exhaust. what are some more good upgrades? and also, what are some upgrades to make my car have a quicker takeoff? because my car is automatic...

and also, are N-1 Extreme catback systems any good at all? theres some on ebay for pretty cheap... http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33630&item=7929623670&rd=1 theres one of them. because i dont really have any money for something like GReddy. any opinions is appreciated. thanks!