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SKU: A2-220
GiroDisc 14-20 BMW M2/M3/M4 (F8X w/Red/Silver/Gold Calipers Incl CCM) 400mm Slotted Rear Rotors
GiroDisc slotted rear rotors deliver precise braking for 2014-2021 BMW M2/M3/M4 F8X models equipped with red silver or gold calipers including CCM setups. The 400mm x 32mm 2-piece design reduces unsprung weight by 20% over OEM while slotted surfaces clear gases and debris for consistent stopping power. Ideal for spirited driving and track days these rotors maintain low temperatures under heavy use.
Key Features
- 2-Piece Construction: Lightweight 6061-T6 aircraft-grade aluminum hat floats on high-carbon alloy steel ring reducing rotational mass by 6.4 lbs per rotor versus stock 28.2 lbs OEM.
- Slotted Design: Precision slots expel brake gases water and pad residue preventing fade and ensuring shorter stopping distances in all conditions.
- 400mm x 32mm Dimensions: Direct bolt-on replacement matches OEM specs for F8X rear axle with perfect balance and no hub-centric modifications needed.
- Curved-Vane Internal Cooling: Enhances heat dissipation up to 30% better than solid rotors sustaining performance during repeated hard stops.
- Calipers Compatibility: Fits OEM red silver gold painted calipers on steel or carbon ceramic equipped vehicles with included anti-corrosion hardware.
Product Notes
- Sold as a pair includes stainless steel hardware for hat-to-ring attachment.
- Requires proper bedding-in procedure for optimal performance and longevity.
- Packaged in protective foam-lined boxes to prevent damage during transit.
Installation Notes
- Professional installation recommended.
- Bolt directly to OEM hubs using factory torque specs no machining required.
- Compatible with OEM pads hardware and ABS sensors includes floating hardware kit.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2018 | BMW | M3 | F80 Sedan All |
| 2014-2020 | BMW | M4 | F82 Coupe All |
| 2014-2020 | BMW | M4 | F83 Convertible All |
| 2018-2021 | BMW | M2 | F87 Competition |
Why Choose GiroDisc?
- Handcrafted in USA with racing pedigree trusted by professional drivers.
- Proven durability in endurance events with consistent low wear rates.
- Precision engineering ensures perfect fit and vibration-free operation.
Frequently Asked Questions
-
Q: Will these rotors fit vehicles with factory carbon ceramic brakes?
A: Yes designed specifically for F8X models with CCM including red silver or gold calipers providing a lighter steel alternative without modifications. -
Q: What material is used for the rotor ring?
A: High-carbon 4340 forged steel alloy for superior strength heat resistance and resistance to warping under extreme loads. -
Q: What is the warranty and bedding process?
A: Lifetime structural warranty against defects follow GiroDisc bedding guide with 10-15 progressive stops from 100-10 mph to seat pads properly.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Pair ships in 42 x 14 x 14 inch double-walled boxes with foam inserts
- Weight: 48 lbs shipping weight
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