I'm hoping someone can help with a stock '0411 5.3 Liter / 4L80E .cal or .bin file. I'm not sure if there was a factory 5.3 Liter / 4L80E vehicle? I've seen several '0411 files for a 6.0 Liter / 4L80E and several '0411 files for a 5.3 Liter / 4L60E. It looks like the OS is different 4L80E vs. 4L60E? Maybe someone has a VIN that they would be willing to share for a 5.3 / 4L80E vehicle, so a .cal can be purchase from TC.

dave w