Online Update Instructions and Files
Note: Hot Race LMM, Hot+2 E.T. Race LMM and 2001-2008 Hot+2 E.T. Xcelerators are not upgradable online! Updating your programmer with the TUNE and TEXT files will result in loss of race tunes. Please fill out a warranty return form
2006-2007 Duramax LLY/LBZ Xcelerator
Use the above update if your Xcelerator screen looks like this.
Duramax LB7/LLY/LBZ/LMM Xcelerator
Use the above update if your Xcelerator screen looks like this.
2007-2008 C4500/C5500 Medium Duty Kodiac/TopKick Tune available here!
Problem: I get a "garbage screen" after updating my Xcelerator!
Solution: You have used the incorrect update! Simply use the other update to correctly update your Xcelerator.
