Total surveys taken: 186
Total tuned miles driven: 2,733,500 (estimated)
Tuned cars with major failures: 5 *
Percentage of tuned cars running reliably: 97.3% **
Transmission type: CVT (58); Manual (128)
Hondata used as tuning device: 48
KTuner used as tuning device: 151
JB4 used as tuning device: 1
Pro custom tune file used: 39
Most used non-base tune: TSP Stage 1 (65)
Most tuned vehicle: Civic Si
Most used fuel: 93 octane (100)
Popular mods: PRL Cobra, K&N drop-in
* 2 cars had a failed CVT. 1 car had faulty injectors and a blown head gasket. 1 car blew an engine running an E35/meth setup. 1 car blew an engine on the racetrack.
** There were minor issues reported here and there with the stock clutch, one suspected injector issue, fuel trim and knock control funkiness depending on intake and gas used, etcetera. None of these issues were major.