Vehicle Backup File extension ?

[kfox]

I loaded the Diablo tune into my 2006 C6 Z51 corvette and it worked with no problems. I have one simple question, what is the normal extension that is used when the Predator saves the Vehicle Backup File ? Mine saved it as a .lan file. I renamed it when it prompted me to save it, but I only changed the name before the extension. It save it as "c6original.lan" It was a 257 kb file. Is this correct ? I want to make sure that the original tune will go back in if I ever need it to. Thanks so much, you guys are doing a great job at answering all of our questions.

U7194-8r05
GMLS2 E-40

[chris]

On the 06 Vette you should have a .grg file, however you do not have to save the original tune onto your PC to load back into the car as the backup, it is automatically backed up in the Predator when you install a Performance or Custom Tune into your PCM.