Originally Posted by mindlessmark07
The gthaus system was extremely loud. If sound is what you are looking for, buy that.
Honestly guys, I have the Meisterschaft system, and it's not very loud, at least in the cabin. It's perfect for me, and for the M5 in my opinion, but definately not as loud as my M3 with Dinan race exhaust or the 458 with stock exhaust. I rate it a 9, especially when you hear it from the outside.