Alright well thank you for the info. BAMA just e-mailed 3 tunes so they will be going on the car as soon as I drive it home from the shop, which is only 10 miles away. Is there any way to verify that the O2's are connected properly? Would this be something that I could personally check upon arrival at the shop.
At the very top of the bellhousing is a tie-down for the wiring harness that can be loosened. If the shop does this during the header install then they can simply use the factory connections for the O2 sensors which click together. You can tug on them to make sure they don't pop out but as long as the shop is aware and pays close attention you should be fine.