First timer here.

I have a 1998 Accord Ex with the 4 cyl. I have installed an AEM cold air V2 intake, a DC 4-2-1 Header and a Greddy Catback stainless exhaust. The performance gains have been minimal.

Does anyone have some advise (or a good website) as to whether I should install oversize injectors and/or remap the computer? What is the hot setup? I am not looking to race my car, I just want the acceleration to match the sound it make now.

Are there down sides to making these modifications?

Any info is appreciated.
Thanks.