So I did a reset to my ECU my leaving the battery plugged in but removed the fuse to my ECU as instructed by the Mitsubishi galant forums. And that did improve my FC somewhat, Got around 10% reduction.
Apparently our Turbo ECU is originally set to run a little rich for more fuel to cool the engine and it gets richer as time passes. Resetting just the ecu only resets its fuel trims.
Just FYI only in case some guys are experiencing unusually high FC and might want to tinker with this. But of course many other things will affect your FC like a fouled O2 sensor, bad plugs and stuff.
Cheers.