Hi: I’m interested in re-flashing the ECM or using a performance replacement chip in my 2021 Plus 4 w/ Ford GDI engine.What would be the difference? I’m in the U.S.and the chip upgrade is readily available. Otherwise, my dealer, 80 plus miles away has to send the computer back to the factory to be re-flashed. Could take weeks.(past experience.) Does anyone have an opinion. Thanks, Larry
