GiroDisc GiroDisc 14-20 BMW M2/M3/M4 (F8X w/Blue Calipers) 368mm Slotted Rear Rotors
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GiroDisc 14-20 BMW M2/M3/M4 (F8X w/Blue Calipers) 368mm Slotted Rear Rotors

GiroDisc
GIRA2-186
A2-186
Brake Rotors - 2 Piece
10 Units In Stock - Ships Next Business Day
$ 1,350.00
$ 1,350.00

SKU: A2-186

GiroDisc 14-20 BMW M2/M3/M4 (F8X w/Blue Calipers) 380mm Slotted Rear Rotors

GiroDisc 380mm slotted rear rotors deliver direct replacement braking for 2014-2020 BMW M2/M3/M4 F8X chassis vehicles with blue calipers. The 2-piece construction sheds over 10 pounds of unsprung weight per pair versus OEM while channeling heat away from hats to maintain pad bite. Drivers gain reliable fade-free stops during aggressive track sessions or daily drives.

Key Features

  • 2-Piece Floating Design: 6061-T6 forged aluminum hats isolate heat from braking surfaces to reduce warping risk and extend component life
  • 380 x 30mm Dimensions: Matches OEM specs for seamless caliper fit with 72 curved vanes directing airflow
  • Slotted Friction Ring: 72mm x 5mm slots expel brake gases water pad residue for consistent contact and shorter stopping distances
  • Weight Savings: 5.2 lbs lighter per rotor than stock 27.5 lb OEM units improving suspension response acceleration handling
  • High-Carbon Alloy Iron: Resists cracking under high loads with black anodized hats resisting corrosion for long-term durability

Product Notes

  • Pair of rotors included designed as bolt-on OEM replacement no chassis modifications required
  • Bed-in rotors with GiroDisc or compatible pads following manufacturer procedure for peak performance
  • Packaged in protective boxes measuring 42 x 14 x 14 inches for safe transit

Installation Notes

  • Professional installation recommended.
  • Use torque wrench to OEM specs on caliper bolts and hub nuts
  • Retains compatibility with factory hardware pads and blue calipers

This Part Fits

Year Make Model Submodel
2016-2021 BMW M2 F87 w/ Blue Calipers
2015-2018 BMW M3 Sedan F80 w/ Blue Calipers
2015-2020 BMW M4 Coupe F82 w/ Blue Calipers
2015-2021 BMW M4 Convertible F83 w/ Blue Calipers

Why Choose GiroDisc?

  • USA-engineered with racing-proven 2-piece technology used in pro series worldwide
  • Machined from premium materials for exact F8X fitment and sustained high-heat performance
  • Delivers measurable gains in rotor life pad efficiency through advanced venting geometry

Frequently Asked Questions

  • Q: Do these rotors fit 2018 BMW M4 Competition with blue calipers?
    A: Yes direct bolt-on for all 2015-2020 F82 M4 models including Base Competition CS with factory blue calipers and 380mm rears
  • Q: What materials are used in construction?
    A: High-carbon alloy cast iron friction rings paired with 6061-T6 forged aluminum hats black anodized for strength thermal isolation corrosion resistance
  • Q: What warranty coverage applies?
    A: Limited lifetime warranty covers defects warping under normal street track use excludes abuse improper bedding

Shipping & Handling

  • Method: UPS Ground Freight
  • Availability: In stock - ships same or next business day
  • Packaging: Custom protective boxes 42 x 14 x 14 inches
  • Weight: 48 lbs

Request For Information

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