Even I you drive stoplight to stoplight, I still think the performance tune is better for gas mileage. Street is more fun, but I averaged 19 there as opposed to 21 with the performance tune.
Didn't realize any appreciable gains with the 93 Hybrid tune.
2011 Mustang 3.7L, 6A, MCA Pkg, Ingot Silver w/ Stone
Perf Mods: FRPP 3.73 Gears, 87 Octane Performance Tune from BAMA, Airaid CAI, Magnaflow Comp Axle-backs
Ext Mods: Lower chrome billet grille, Tint
Upcoming Mods: Lowering springs