Sports exhaust is made of Iconel and is lighter than standard exhaust, and the sound OUTSIDE the car is louder. INSIDE the car, you're hearing the Induction Noise Generator (ING), whether you have the standard or sport exhaust.
Currently here are three levels of ING, selected when using the [P]erformance toggle. In [N]ormal mode, the ING is OFF. In
port mode, the ING is set to a a medium-ish level. In [T]rack mode, the ING is at it's loudest.
I'm assuming that "programmability" means that you'll be able to select the level of sound from the ING separate from the [P]erformance toggle setting (i.e., you'll be able to have the ING "off" in [T]rack mode).