I have one that I ordered and ended up not using, unit is unlocked and ready to be used. It is the Diablo Predator for the 04.5-05 LLY Duramax, if you have questions as to whether or not it will work on your '04, check the 8th digit of the VIN, it will need to be a 2 for it to work. Unit is being sold AS-IS, no warranty. Asking price is $320 shipped in the lower 48, Located in Brea, CA.
