I did some research on this months ago. if I remember correctly, if you were to have JUST a chip (no intake, no exhaust) it would give you like 14+ hp. If you would have intake and/or exhaust, you would get more gains. hope this helps.
From what I'm hearing putting in a chip doesn't do all that much. I'm pretty happy for the performance at speed (awesome power and response, even if 5th and 6th gear!) but I would like improve throttle response in the low range (let's say the 0-60 mph domain). Any options you can recommend?