I just bought the car and I just bought the tuner. So the tune came from another tuner.

I boht an 09 Challenger and went to tune. Predator says car is already tuned. Can I use the predator to get back to factory? Or get to where I can tune? Thanks!!

I bought an 09 Challenger and have a Predator tuner. When I went to load a tune it says there is a previous tune already there. I need to set it back to factory and start over. Can I do this without going to the dealer? Thanks!!