I wanna say it should. I've got the SR Performance STB and it's labeled (05-14 GT, V6) if I remember correctly.
Just doubled checked on AM. It seems that some will fit whereas others won't, more than likely due to clearance issues over the intake manifold.
2012 Kona Blue 3.7L V6:
Borla LT headers, O/R h-pipe, Borla S-types, 3.73 gears,
Steeda adjustable UCA w/ mount, BMR LCAs, Airaid CAI,
LCA Relocation brackets, AE driveshaft, GT 80mm TB,
Black 18x9/10 2010 GT500 Wheels w/ Nitto NT555s,
Eibach Sportline Springs/shocks & Koni STR.T Struts