Put a couple of hours on the BW mounts to work and back today.
The "boom in the trunk" effect at idle goes away once the engine's up to temp.
Only slightly more vibe than the VTs at idle, no really noticeable vibe off idle, and definitely a little more sound of all the whirly bits in the 3000-3500 rpm range.
You know, that S54 trademark sound of the rocker arms, the timing chain, and the Vanos.
Love that sound!
BimmerWorld FTW!!