If I start with a car that has an mass air flow sensor (MAF) signalling the stock ECU, but the modded ECU only accepts a manifold absolute pressure (MAP) input (all of the less expensive ones work this way), 1) am I allowed to add a MAP sensor to the intake manifold (assuming I can get the signal to the modded ECU through the stock ECU electrical connector), and 2) can I remove or disable the unused stock MAF sensor?