I don't think you'll need a re-tune, Gene. The PCM will duty cycle the FPDM based on the Delta pressure required as signalled from the FRPS. And since you are getting a FPDM modded to handle the extra current from the GT pumps, I am sure you'll be fine. If anything, you'll have to cut back drastically on the added voltage from the BAP.

Cheers,

PARKER