so I heard back from the apr guys:

"The Cherokee Chapter gets 10% off retail chip prices. Your price would be $673.20 for stock and 93, instead of $748. With 7% tax and $42.50 labor, your total would be $762.82
Read up on APR's website, and keep in mind if you add the $59 security option the complete system is 100% undetectable from dealerships."

One thing to note!!!!
Apparently there could be an ecu upgarde waiting for us when we go in for service.

http://forums.audiworld.com/a4b7/msgs/76698.phtml

I'm at 13.5k miles, and I might just try to come in for my 15k service to avoid this euc potential conflict....