Did you tell them I sent ya? LOL.

I agree. Not too much in the performance gain, but I am looking at it with the idea of wanting a louder note. That louder note will come with 2.5 inch tubing. If I upgrade the ECU and pulley some day, that 2.5 inch tubing will be worth it.

With the sound insulation that Audis have, I am not convinced whatsoever that you will not be able to have BT conversations. Why? Because I had a full cat back, non res exhaust from JHM on my 2006 S4. I had no issues having a conversation either inside the cabin or over the phone - FWIW