is there a way too tell if my car has been tuned?

Originally Posted by Jordo!

Yeah, but if he accidentally sets a valet map that will suck... I don't think that's a good idea if there are unknown maps hiding on there.

That said, my guess is that he isn't tuned.

OP might also search the car for an uprev cable in glove box or center console -- that would almost definitely mean a tune is on there.