All my mods are listed in my sig and I use my stock maf which I ported along time ago before I installed the sc. But recently mine went bad so i bought a used stock one for 30 dollars shipped. From a guy at www.modulardepot.com . I just installed the whole unported maf It worked fine considering my car would not start intill you unpluged the old maf . The main thing I noticed that accelaration and power where less not alot but still noticable. Then I decide to change the new used sensor into the old maf and the power was back. I have never had any problems with detenation drive ability, or power just a slight amount surge at low rpms intill I changed the walbro fp for the aviator one. I put the sc on last winter at 104000 miles at 117000 last month I tore the gears out of the oil pump I think it was because I spent to much time at high rpms sometimes well above 6k I have a rev limiter of 6650 and always in the boost.I replaced the engine with a 2002 mustang engine stock assembly that 0 miles on it all asserories including intake plenum tb fuel rails injectors wiring harness clutch,oil,oil filter and belt basically everthing it was still on a big steel metal frame the romeo engine plant uses.Where this guy got it who knows it was an ebay purchase. I know that the 2002 as a slightly higher compression so my question is should I be worried about my tune or my stock maf. I Must remember to shift at 6k