Can't wait to get rid of this awful knob. I run a weighted M 6spd knob in the E46. It's weighted like the ZHP, but stock height and no silver ring at the bottom. Got one for this car now.
ZHP is actually 5.4oz and the weighted M knob is 6.7oz, so a tad heavier and the stock height (stock for e46s) gives more leverage for smoother shifts.
I had ZHP, is ok, but too stubby and I hate the silver ring at the bottom. This M knob is basically the best part of the ZHP, weighted, black leather, M logo on 6 spd pattern, but stock height and no metal.
About the same price as ZHP I believe, about $85. *Sorry, forgot to provide part # if you want to search ebay/google/ECS:
25117896884