you're asking for a pcm tune right? I'm not really sure some people do this stuff but the car is set at a pretty even power/mpg. Remember if you tune for power you will lose MPG.
looks like people are doing standalone engine management systems, which means you basically take out the stock pcm and rewire the whole engine. This is normal for a custom build turbo engine or something but if you're just adding maybe an cold air intake and exhaust system there's really no need to tune.