No probs - I actually got under the car to measure so I was sure, but the eBay links are as follows:
https://www.ebay.co.uk/itm/PFR5-504-18-Powerflex-Front-Anti-Roll-Bar-Mounting-Bushes-18mm-Purple-2-in-Box-/173174081752?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l6249&mkrid=710-127635-2958-0
These are listed as front, but they actually fit z4 rear / or e28 front.
https://www.ebay.co.uk/itm/fits-BMW-3-Series-E46-99-06-POWERFLEX-FRONT-ARB-BUSHES-24mm-PFF5-4602-24-/162542329422?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l6249&mkrid=710-127635-2958-0
These are the front.
https://www.ebay.co.uk/itm/PFR5-504-18-Powerflex-Front-Anti-Roll-Bar-Mounting-Bushes-18mm-Purple-2-in-Box-/173174081752?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l6249&mkrid=710-127635-2958-0
These are listed as front, but they actually fit z4 rear / or e28 front.
https://www.ebay.co.uk/itm/fits-BMW-3-Series-E46-99-06-POWERFLEX-FRONT-ARB-BUSHES-24mm-PFF5-4602-24-/162542329422?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l6249&mkrid=710-127635-2958-0
These are the front.




