They were on the m3 when i bought it but if you look on bmwmini parts i think he sells them,think about £850 without discs but not certain and you will need brackets made up to fit the e46.

hi there monkey
iv been looking down the BBK path this week and see the BMW preformance callipers you have there on csl discs, how much does that set up cost with out the discs ?
cheers