G'day, I have a question that hopefully someone can answer for me. I have a MY00 Subaru WRX (V6) and have recently bought a Link G4 ecu, expansion loom, link air temp sensor and the knock block. My Mechanic/Tuner is competent at installing these ecu's and after I've given him the run down on some things that I want when it comes to tuning I've found out my stock MAP sensor won't allow me to run boost past 21psi since it can't see past this boost range (I want to run 22/23psi), I've found a Perrin 4 Bar MAP sensor for a later model WRX (08+) which has the same plug configuration as my OEM MAP sensor so basically it's a plug and play option using my original MAP sensor plug. My tuner wants to know if a aftermarket MAP sensor such as the Perrin sensor can be easily re-calibrated using the laptop software as he isn't 100% certain. Any help on this matter would be much appreciated. Cheers, Joel