I definitely love the MPE, it sounds much better than the stock exhaust. There is a definite burble when lifting off pairing the MPE with a downpipe.
Here is my video to compare. Windows closed, valves closed and sport and sport+. The drone is lower from the first day, like I said I drive with closed valves and this sound much better than the stock with open valves, deeper
Fabspeed DP & M Exhaust flaps Open