MMX Front 2-Piece Floating Brake Rotors for G8x BMW M2 / M3 / M4

MMX Performance’s Front 2-Piece Floating Brake Rotors for the G8x BMW M2, M3, and M4 are engineered as a direct high-performance upgrade over the factory 380mm drilled discs, which often show signs of thermal stress under spirited or track driving. Designed with a 380mm x 36mm two-piece floating construction, these rotors allow for radial and axial expansion as heat builds — effectively reducing the risk of cracking and warping common with single-piece designs. Each rotor is side-specific and utilizes 72 directionally curved internal vanes that actively draw air through the center and expel heat outward, maximizing cooling efficiency and ensuring consistent braking performance. The friction ring features MMX’s signature groove pattern for improved bite, debris removal, and pad longevity, while the center hat is CNC-machined from 6061-T6 aerospace-grade aluminum for strength and weight savings. Built from proprietary high-temperature alloys, the rotors maintain their structural integrity under extreme braking loads. Optimized for both street and track use, these rotors significantly improve the performance of the factory 6-piston calipers and work seamlessly with OEM or aftermarket brake pads. Paired with MMX’s matching rear rotors, they deliver a complete, balanced braking upgrade for G8x M cars.

Features

• 380mm x 36mm floating 2-piece rotors
• Aerospace grade 6061-T6 aluminum hats
• Specific left and right handed directional discs
• 72 correctly oriented curved internal cooling vanes
• Floating bobbins mounting system
• Increases cooling efficiency up to 30% compared to OE discs / rotors
• Flexible fitment for OEM or after-market pads
• Fitment for OEM calipers
• Matching rear discs available

Applications

• BMW M2: G87 (2023-present)
• BMW M3: G80, G81 (2021-present)
• BMW M4: G82, G83 (2021-present)

Notes

• Matching rear discs available
• You can use OEM or after-market performance pads with these discs
• Sold as a pair (2 front brake rotors)
• Images are generic, actual product may vary

About MMX Performance

MMX Performance is a UK‑based specialist in performance parts for BMW and MINI vehicles, crafting high‑quality upgrades that blend precision engineering, rigorous testing, and motorsport heritage. Driven by enthusiast culture, MMX designs its products in the UK — often putting them through track validation — to ensure durability, fitment accuracy, and on-road performance. Their catalog spans drivetrain components, spacers, hardware, and chassis enhancements, all tailored to elevate both the driving experience and visual appeal of BMW and MINI models.