just do the whole I/H/E and it should give you that very little extra to achive what you want. I recommend Injen CAI, and megan header and exhaust (unless you live in Cali then dc sports header and exhaust

 

Yeah my g/f is buying me those DC sports Headers for Christmas, The ones I showed you on my thread. Will it make a difference on my Car ?????
I have a high flow cat from magnaflow, Magnaflow street series exhaust, AEM short ram intake, AEM adjustable cam gears. yeah still working on it.

 

Civic SI 2000. It will make your car sound deeper. But shouldn't make it louder. It will add horsepower. Nothing huge but it will add a little. Are you boosting? or are you going for an N/A setup. Cuz in the spring i want to pick up a 99 ex coupe and do a b16 swap. And im not sure what i should do. Could use some opinions from si owners. You run high octane???

 

lots of ppl say it gives gains, i think it does F@ck all, just sounds good, unless u run headers and 2&1/4 inch exhaust,then you are gettin a better flow.