Poorly fitting replica fiberglass bumpers are available from the usual suspects. My threshold was OEM fitment and nothing less.
At over 5,000$ USD excluding shipping, the Genuine BMW CSL carbon bumper was nothing more than a pipe dream.
I found a German made alternative.
In this Special Series, I documented the EU to NA logistics, unboxing impressions, fitment attempts and review of the final fitment & required hardware for the CSL carbon bumper.
Cheers,
- Matt / @m3_epoustouflant
Dual snorkels
After many requests, a variant of the mold was created to offer a dual snorkel variant of the bumper. The CSL windshield fluid reservoir will no longer fit on the passenger side.

The bumper uses OEM hardware - but it probably isn't the hardware you have on your E46 M3 right now.

Professional installation is recommended. You'll need a body shop to paint & fit them according to your car's condition.

Alsatek is a German composite manufacturer of automotive racing components for motorsport teams.
They are focused on developing and manufacturing high quality carbon products using high end carbon manufactuirng processes.