I had been looking for a suitable replacement shift knob for a while. My search took me to TWM Performance and their unique approach to a solution for BMWs. They provide a threaded adapter for the BMW shift lever that is secured with three set screws. Then the shift knob can be torqued down onto the threads of the adapter. The result is a very secure knob. I chose TWMs competition series knob and I am very happy with the product.
The packaging

TWM0 by JMEllis, on Flickr
The packaging inside is very nice. The threaded adapter is on the left

TWM1 by JMEllis, on Flickr
The result

TWM2 by JMEllis, on Flickr
Jason
The packaging

TWM0 by JMEllis, on Flickr
The packaging inside is very nice. The threaded adapter is on the left

TWM1 by JMEllis, on Flickr
The result

TWM2 by JMEllis, on Flickr
Jason






, then sell your car. Just sayin'