How exactly would I check to see if the vehicle possibly has and tunes but is set in stock mode right now?
When you get on it, is it slow? :lol:
First thing I would do is go to APR's site, and go to their page where it tells how to change tunes (APR "EMCS functions" or something like that). Anyway, that page gives instructions on how to change tunes using the cruise control stalk. If the car flashes on the dash, you know it has their mutli-file tune on it.
If it does not, then it's either the single program tune, or no tune at all...which brings me to the next point:
Get your VIN# and call the major tuners (APR, United Motorsport, etc.)
They can check to see if the VIN is in the database.