I have a 2016 5.7 FFV 4x4 plat. ...would my 4 credits only allow me to tune
A. My vin
B. An identical 2016 FFV 4x4 with the identical ecm
C. Any 2016 5.7 Tundra 4x4
D. Any 2016 5.7 Tundra
Etc?
If it's by year and model, what exactly designates the model? Trim (sr5/ltd/plat)? 4x4? FFV?