Oh, and I used the NGK Platinums and they are great... a little pricey but great. I lucked out and got them at cost from a buddy at the dealership.

You can get them from honda... part # 98079-5714H

I also like the Apexi WS or RSR Exmag exhaust, they are quiet and have good mid to top end power.

This guy has traction bars/radius rods that fit the civic with the H22 http://dtrfab.com/traction_bars/