Joined: Sep 2011
Location: West Suburb of Chicago
Getting a sub-5 second 0-60 should not require any mods, no tune, no gears, nada. The 2013 GT with auto should be good for about 4.7s.
To the OP, what size/brand/model tires do you have? Also, as others have stated, the track app might not be accurate. Have someone time you with a stop watch. One more thing, are you testing on a good surface? Is it fresh black asphalt with no traction?
2012 Grabber Blue GT Premium, 6MT, 3:31, Brembo, Nav, Comfort pkg, backup camera.
Goodies: GT500 Mufflers, MGW Shifter, DSS AL Driveshaft, Bondra Clutch pedal extension
Tune: Bama 91 Octane V2 Performance Tune
Suspension: Steeda Ultralite Springs, Koni Yellows, Steeda HD Strut Mounts, Steeda UCA - lowered cars, BMR Adj. Panhard bar
Tires: Continental DWS06 275/40-19
Track Days: Bama 93 Octane Race Tune, 18x10 SVE Drifts with Bridgestone RE-11 285/30
Just for show: Raxiom Smoked tail lights