2000 LS1 M6, No EGR/Air/PS/CATs. TR230 Cam, COS3, OLSD, LC1 Wideband fitted, Procharger P1SC, 2 Bar MAP, Siemans Dekka 60Lb Injectors.
All wrapped up in a 2000Lb AC Cobra Replica
Yes, full (OS+cal) flash... if the new OS is not compatible with your PCM, you will get an error message and the flash will not go thru.