Here's the thread on it. Lots of video's and sound clips
Those with Magnaflow's Exhaust System (Part #15072)
Keep in mind the catback is mandrel bent 2.5in piping I believe. Not a weld in muffler.
Best of luck
2012 FF Ti HB Platinum White Tricoat, Built 12/11, 401A + Parking Technology Package and MFT w/NAV at 3.5.1