Before I knew how to use the search function, and also before I knew where to find good prices on car parts, I bought a K&N FIPK as my first mod for over $200 from Autozone. It didn't do much by the SOTP meter but it makes a sucking air noise that I thought was cool. All the NA mods will add up and a CAI isn't bad if your planning on doing other things besides the CAI. I recently bought the big air kit, along with a blower, from KB so I have my old K&N sitting around. Shoot me a PM if interested and I'll get you pics. I've been meaning to put it in the classifieds, along with my other N/A stuff, but I'm lazy.