Unsure about safc and map sensors. i think maybe the later ones support both.. would have to research to confirm tho.
If you can make friends with someone that has a "Ecuflash AUDM 4g15 XML file" they could send you the files so you can tune via laptop.
you need a cable to connect called tactrix openport 2.0 roughly $250. + some free software.
much better option than a safc. but i personally do not have this file. only 4g93 stuff...
by tuning the stock ecu you can correctly account for the larger injectors you will need. as well as alot more control over the whole thing.
lookup ecuflash