Originally Posted by malcb

That supprises me, I know MB do use a bypass valve on some SC engines (I have one that I might mod to use on something else - damm thing seems to be operated on the CAN network). I have an Eaton M112 SC and it would be very restrictive to pull air through if it were stationary, hadn't even imagined it as possiable, I wonder if the SC on the SRT/AMG engine is different.