Remeber guys, this is a 4cyl 5 speeds.
This is the recommended list, I wrote the 4 cyl FAQ so you might want to look at it in the Performance section.
1. Front Lip (easiest and will change the look so much)
2. Lower the car (Eibach and KYB is fine)
3. FSZE Intake cams (cheapest 10hp ever invented)
3a. Don't do exhaust cams, as they are the same profile as the 03
4. CAI (buy the long tube *almost 2 feet long* CAI for an Integra GSR anbd it is a direct fit)
5. Headers (Get them from SSautochrome on eBay and they are dirt cheap)
6. Get a cat back from any exhaust shop, mandrel bent is best but 2.25 crush bend alone will unleash that 2.0L of fury.
After all of that you shuld have a decent looking car putting close to the 150hp mark if your able to do some port and polish to the head and intake manifold. Considering the 4 cyl weights in around 2500 lbs that's pretty decent V6 territory performance.
Or you can always take the easy way out, sell the RS, put in about 500 and get an LS
Here's mine lowered with Eibach and a front lip....UNPAINTED.