GOTTORQ,
I'm sorry for the delayed response! We've been very busy here at AM lately with the Car Show coming up this weekend! That's not a good excuse though, so I will try and get to all of our AM sub-forum questions done within 24 business hours in the future. However, I have been checking my PM's every day and do not have any from you. Who did you try to PM?
Number of tunes- We only have the Free Tunes for Life option available, which gives you 3 custom tunes and free adjustments for the original car you purchase it for. Unfortunately, we do not offer single tunes right now.
Also, there's no problem with tuning for your stock mid-pipe and leaving the rear O2's functional. When you fill out the tuning info form after purchasing into the Free Tunes for Life program, you'll list all of the mods to your car, and we'll hook you up with the exact custom tunes you're looking for.
I hope this helps, let me now if there's anything else I can help with!
Shane