.....And EGT would be your tuning parameter for individual cylinder control???
I'm heading in this direction, EGT probe for each exhaust port. Looking at sourcing the bungs right now for welding onto the header.
Omega.com sells an inexpensive 4 input digital gauge ($95) into which I'll plug four exposed thermocouple probes (~$40/probe).
After tuning, I may pass this thing around for others to use to do their tunes. Phil seemed pretty interested in the indi' cylinder data. I have the '04 STi so he won't being tuning those until August.