BMW E9X 335i Front Rotors

Upgrade your BMW E9X 335i’s stopping power with Girodisc 2-piece floating front rotors — a direct bolt-on replacement designed to outperform the factory setup. No modifications are needed; these rotors mount seamlessly to your OEM calipers while preserving factory brake balance and ABS functionality. The Girodisc design cuts significant unsprung and rotational mass, improving handling, throttle response, and overall braking feel.

Each rotor features a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary high-carbon cast-iron rings. The internal curved vane pattern is engineered to act as a centrifugal pump, drawing air through the rotor to dissipate heat under extreme conditions — from spirited canyon drives to full track sessions.

Precision-Crafted for Performance

Vehicle Fitment

• BMW E90 / E92 / E93 335i
• BMW E90 / E92 / E93 335is

Girodisc A1-114 Features

• Direct replacement design: Bolts to OEM calipers with no modifications or spacers required.

• Lightweight construction: Reduces unsprung weight for improved suspension response and steering feedback.

• Curved vane cooling: Efficiently channels air through the disc for better heat dissipation and fade resistance.

• Floating mount hardware: Uses cadmium-plated drive pins and anti-noise spring washers to manage thermal expansion silently.

• Serviceable two-piece design: Replace only the iron rotor rings when worn, reducing long-term cost.

• Made in the USA: All materials are sourced, cast, and machined in-house by Girodisc for consistent quality.

Girodisc A1-114 FAQs

Will these rotors fit my stock calipers? Yes. They’re a direct-fit upgrade that works perfectly with OEM 335i calipers.

Do I need to change brake pads? No. Your existing OEM or performance pads will fit without modification.

Are these rotors suitable for track days? Absolutely. The curved vane design ensures consistent braking and cooling under track conditions.

Do they make noise like other floating rotors? No. Girodisc uses anti-noise spring washers to eliminate rattling while allowing full float under heat.

How are they sold? Sold and priced per pair.

Bring your BMW’s braking to the next level with Girodisc front rotors — lighter, cooler, and engineered to deliver track-proven performance with factory-level refinement.