DESCRIPTION

These Zimmermann Cross-Drilled Floating Front Rotors are a premium, direct-fit replacement for factory 345mm two-piece rotors fitted to the BMW E46 M3 CSL and Competition Package (CS), as well as the BMW Z4 M Coupe and Z4 M Roadster.

Faithfully true to BMW’s original floating rotor design, these rotors feature an aluminium hat for reduced unsprung weight and a cross-drilled steel friction ring for improved cooling. Manufactured in Germany to exacting OE standards, they offer the performance, fitment, and aesthetics expected by enthusiasts and track-day drivers alike.

Zimmermann’s cross-drilled pattern helps reduce brake fade under repeated high-speed braking by venting hot gases and water. Each rotor is precision-balanced and finished with Zimmermann’s coat-Z anti-corrosion treatment to maintain appearance and prevent rust on non-friction surfaces.

Whether you’re restoring your CSL or upgrading your Z4 M’s braking performance, these rotors deliver trusted German quality, authentic construction, and everyday usability in a true motorsport-inspired design.

Please note that for E46 M3 models, these rotors are only suitable for CS and CSL variants. 

HELPFUL TIPS

We recommend changing your brake pads whenever you replace your discs. To make sure you achieve optimum performance and safety please follow the proper bedding-in procedure, found here.

PART NUMBERS

Please note: Part numbers are provided for reference only. For correct compatibility to your vehicle, please follow our fitment advice

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