is there like a discount for being a member on modded mustangs for that xcal3? also. do i need a maf? if so what size. power pipe? im just trying to get the most out of this p1sc and intercooler. i got 42lb injectors and im getting the fuel pump. any other goodies i should get to get the most out of it? should i get all this before the tune to make it more accurate. Thanks bro.