Originally Posted by mwlmd
How does this kit work? What advantage does it offer?
Are you referring to the stud kit? or Spacer Kit?
The wheel stud kit is a item featured on most vehicle marques, however, BMW decided to stick with the old wheel bolt style of fastener. The Macht Schnell stud kit is a screw-in type of fastener that is threaded into the exiting bolt hole on the wheel hub. The main benefit of the wheel stud kit is wheel changes. Instead of propping the wheel up against the hub and carefully locating the holes you can simply place the wheel on the studs as a guide.