just started reading this thread and please please dont go to mtech for your mapping although i am a big fan of megasquirt for its simplicity and easy of use and the ability to add and change anything you want to but mtech automotive are pretty usless from what i have seen of them, they couldnt even figure out the fuel rail on an st170 lol (see marsh on focus forums) and when i bought my megasquirt of them supposedly pre built they didnt even solder the connector to the board!
ok rant over and theres nothing wrong with wanting everything to be as good as it can be keep it up mate cracking car