I recently purchased an Edge Part# 20103 6.6L LMM Juice W/ Attitude for a 07-08 Chevy/GM Duramax to install on my 2009 HD 2500. The newest Edge part numbrt for the 07 - 09 year is part# 20104. I called Edge to see if this would work on my truck and was informed by their tech support that this box would not work on a 2009 Duramax due to changes in the 2009 ecu programming. They said I would have to send them the Juice box and have it updated for a exchange charge of $250.00. I was wondering if anyone knows what the ecu changes are between 08 and 09 and is it serious enough not to be able to run the box in its current form?