Stock Tune or Aftermarket?

the car has flowmasters and a K&N. That's it as far as I know. What if the "new tune" was added like a Hypertech does it where there is no chip but just a swap of a program? How many other tuners work that way? How would I find the computer and where would the chip reside?
 
If someone programmed the car with a diablo, SCT, etc they most likely would have deprogrammed it before selling or sold the programmer with the car since the programmer is useless until it puts back the factory tune on the original car.

My bet is that its stock.

~K