Quote Originally Posted by Tordne
It is very common practice from what I've seen to go to the latest version of the OS's. Camaro/TransAm for instance go to 12212156 for instance.
I upgraded my 2000 SS from 09381344 to 12212156 over a year ago and haven't had any issues.

Here are my notes:
Base calibration is a stock 2002 Camaro/Manual (OS 12212156)

Modification summary:
  • Enable EGR
  • Update Engine DTC Processing Enablers from 2000 calibration
  • Update Engine DTC MIL Enables from 2000 calibration
  • Update Injector Flow Rate table from 2000 calibration
  • Disable CAGS
  • Remove speed limiter
  • Tweak fans on/off settings
  • Change to 3.73 rear gear
Since then I've done some VE and MAF tuning. (It has passed smog in this configuration.)