I actually like it. The safc has its limits, but with the maf-t you have more room to tune. for example, i can dial in -18 with the maf-t and that leaves more room to adjust the afr with the safc. PLUS MY BOV MAKES THAT COOOOL PSSSST SOUND.... j/k i was going to switch to speed density with the aem ems, but i sold it because i needed the money at the time. It might just be the maf-t. I can always zero it out, set it to just translate the gm maf signal and tune it the rest of the way with the safc... its all about time though... which i don't really have