Stock cast-iron one-piece rotors were engineered to pass emissions cycles and meet warranty thresholds, not to survive repeated hard stops on a track. The EBC Racing SG2FC two-piece floating conversion rotors upgrade the front braking system of the 2015-2023 Mustang 5.0L to a motorsport-derived architecture that handles heat cycling, unsprung weight reduction, and thermal fatigue in ways no OEM rotor can match.
G3500 high-carbon, high-copper disc alloy. Every outer ring is cast from G3500 alloy, the highest-grade disc iron EBC Racing uses. The elevated carbon and copper content delivers superior thermal conductivity and heat-cycling durability compared to standard grey iron, so the rotor surface stabilizes quickly, allows proper transfer-layer deposition from the pad, and resists the crazing and cracking that kills lesser rotors under sustained abuse.
Proven under the R90 thermal fatigue protocol. EBC Racing's two-piece rotors completed two consecutive back-to-back cycles of the extremely demanding Reg 90 dynamometer routine with zero cracking and no visible crazing. Most OEM discs show crack initiation at stop 40 and outright failure at stop 80 of 150 through a single R90 run. The EBC units outperformed that OEM benchmark by more than four times in the same standardized test.
Fully floating two-piece construction. Separating the cast-iron ring from the center hub with stainless steel bobbins and pressure clips allows the ring to expand thermally without transferring stress to the hat or inducing pedal pulsation. The hub, bobbins, clips, and hardware are all manufactured at EBC's UK facility, where each ring is balance-checked, metallurgy-verified, and precision double-disc ground to flatness within microns.
48 curved, handed vanes for maximum cooling. Each ring carries 48 curved vanes that are directional: the left rotor and right rotor are handed so the vanes always rotate in the correct direction to pump air outward through the disc. This geometry maximizes airflow through the rotor under sustained braking and keeps operating temperatures in check during track sessions or mountain runs.
Meaningful unsprung weight reduction. Brake rotors sit at the worst possible place for vehicle dynamics: unsprung and rotating. Reducing mass here improves acceleration response, sharpens turn-in, reduces brake dive, and allows the suspension to follow road surfaces more accurately. The SG2FC conversion delivers a perceptible change in how the front end responds before and after the upgrade, a benefit that is immediately noticeable to the driver.
Product Benefits
- Two-Piece Floating Design: Separates the ring from the hat to allow free thermal expansion and eliminate heat-induced pedal pulsation.
- G3500 Disc Alloy Ring: High-carbon, high-copper iron with superior thermal conductivity and heat-cycling durability over standard cast iron.
- R90 Validated: Completed two full back-to-back Reg 90 dynamometer cycles with no cracking, outperforming OEM discs by more than four times.
- 48 Curved Handed Vanes: Directional vane geometry pumps air efficiently and maximizes cooling for both left and right rotors.
- UK-Manufactured Hardware: Center hubs, stainless bobbins, pressure clips, and hardware are all produced at EBC's racing facility for guaranteed precision.
- Reduced Unsprung Mass: Lighter rotating assembly improves acceleration, braking response, and tire contact compared to equivalent OEM rotors.
- Direct Front Fitment: Designed specifically for the 2015-2023 Mustang 5.0L front axle position.
- Precision Ground: Each ring is double-disc ground for flatness within microns after balance and metallurgy checks.
About EBC Brakes Racing: EBC Brakes Racing develops brake rotors and friction materials at its UK facility, applying the same metallurgical rigor to disc alloy selection as it does to pad compound development. The brand's position is that a world-class pad on a substandard rotor produces only average results, so every component in the friction coupling receives equal engineering attention.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Trim | GT, GT Premium, GT 50 Years Limited Edition, Bullitt, Mach 1 |
| Vehicle Fitment | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
