Possible 1999 Integra LS Mods?

Hey, I just bought a 1999 Acura Integra LS. I was wondering if anyine can give me any suggestions on any engine/speed modifications. All that I Have so far is the cold air intake modified. I need some suggestions and ideas on how to make it faster and sound better, anythin? Also, if possible, can you please ecplain the install instructions on any of the mods? Please help, thanks guys. Tim Hanna, Integra 4LiFe