Improve performance

A less restrictive exhaust and a cold air intake is the best way to go and you can always add on to that as needed. Alot of the other mods are cheaper until you add in the labor such as replacing cam shafts. If you want to do it your self I can walk you through it. But it will take some patience. Not much you can do unless you go past emission devices and thats illegal unless its a off road vehicle *wink*