I have a grand waiting to go into my car I all ready have a warpspeed y-pipe, 2 1\2 pipes, lightened flywheel, and intake. I wanted to know what should I get next thats going to give me the most bang for the buck.
Ecu?
Cams?
Cams Gears?
Underdrive pulleys?
Headers?

 

If you already have a Y-pipe I do not think the headers are worth the extra 8-10whp, unless you care so much about sound. If would get a MEVI and ECU together but it's probably gonna run you a little more than a grand... more like 1100-1200$.