I was wondering if it was possible to put a resister on the sensor wire to fake the alternator into putting out higher voltage. There's a 10 amp fused line from the battery line to the alternator which looks like how it senses what the current voltage is. I imagine reducing the voltage in that line by 1 volt would make the alternator increase voltage by 1 volt. You'd have to measure the current through that line to pick a resister.
Is the STI one even better?
Manual says they should be putting out 14.1-14.8 volts and that the STI one's the same as any turbo car.