Helo i have a civic 03 DX....I need some help!!.. i have a 1.7L Sohc engine w/ AEM Cam gear and aluminum pulley....also i recently installed a AEM intake.....what other engine parts do I need to upgrade the performance in my car????....so far I have not found a header w/ a carb number for my DX....I want my car to be street legal......need help PLEASE??????????  

A cat-back exhaust is a good start and any mods after will benefit form it.  

A cat-back exhaust is a good start (w/intake) and any mods after will probably benefit from it.  If street legal is an issue- APEXi WS2 mufflers/ cat-back systems are barely louder than stock if you dont have a header.  Lightweight wheels are good in almost every concievable way, if you have a bigger budget you could add a better intake manifold and throttle body.  Upgrading the head, valvetrain, cam and ignition would be next.  

hey thank you for the advice....anyway i jus recently bought a neuspeed spring for my car + a ingals camber kit....is it a good start????? no rims yet looking for 16" light weight bronze....also where can i get the APEXi WS2 mufflers/ cat-back systems?????    

hey who ever you are THanK You...jus a question i'm planning to buy a tachometer for my car...this tach comes with RPM shift knob...it goes to 10...any what is the best settings for this shift knob...plss help????before i buy this tach.....again Thank YOU  

HI I HAVE AN 89 ACCORD EX-I COUPE I WANNA REPLACE THE ORIGINAL ENGINE I GOT.CAN ANYBODY HELP ME WHAT KIND OF ENGINE I CAN PUT IN IT?