I bought a 2012 Audi A4. They guy at the dealership said it has some mods can anyone tell me how i can go about figuring this out

 

I would go back and ask the dealer what he meant by "has some mods". is it dealer options or did someone do something to it. There are web sites where you can do a vin. # search and find out the options on the car but if there were "things" done you'll have a hard time finding out unless you talk to the previous owner.