[F87_LCI]

Originally Posted by AGM2

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
:l ove: (POW,POW,POW)

It's hard to tell but I swear mine is so much worse. Accelerating from 2700 up through 3200 rpm is almost unbearable...the wife hates it...she says it sounds broken, lol. I will take and post a video next time I drive it for comparison to the one above.