Pretty new to HP tuners and I'm having some trouble calibrating the maf on this car. Car is a 2012 GT with a ported boss intake, bbk CAI, stock headers, cat deletes and resonator deletes. I've searched and searched the forum but there are 1200 different answers on each post. I tried calibrating using LTFT's but the car still isn't running right even tho the LTFT's in my histogram are showing like 0.01 errror so now I'm trying to setup a custom pid for STFT's and use it in the histogram instead but I'm not really quite sure how to setup the PID. Any help would be much appreciated