If you're having trouble finding the right size brake rotor for your S550 Mustang, we have all the sizing and details that you need to know!

If you're having trouble finding the right size brake rotor for your S550 Mustang, we have all the sizing and details that you need to know! And while you're at it, upgrade those factory rotors on your 2015-2023 Mustang with a set of drilled or slotted rotors. With a slotted or drilled pattern, these performance rotors dissipate heat quicker giving you more stopping power and shortening stopping distances.
| Year | Ecoboost/V6 | Ecoboost PP/Standard GT | GT PP1/PP2 | GT350/GT350R | GT500 | Mach 1/Bullitt |
|---|---|---|---|---|---|---|
| 2015 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | 15.5"F/15.0"R | N/A | N/A |
| 2016 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | 15.5"F/15.0"R | N/A | N/A |
| 2017 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | 15.5"F/15.0"R | N/A | N/A |
| 2018 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | 15.5"F/15.0"R | N/A | N/A |
| 2019 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | 15.5"F/15.0"R | N/A | 15.0"F/13.0"R |
| 2020 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | 15.5"F/15.0"R | 16.5"F/14.6"R | 15.0"F/13.0"R |
| 2021 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | N/A | 16.5"F/14.6"R | 15.0"F/13.0"R |
| 2022 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | N/A | 16.5"F/14.6"R | 15.0"F/13.0"R |
| 2023 | 12.6" F/R | 13.9"F/13.0"R | 15.0"F/13.0"R | N/A | N/A | N/A |
| Year | GT350/GT350R | GT500 | Mach 1/Bullitt |
|---|---|---|---|
| 2015 | 15.5"F/15.0"R | N/A | N/A |
| 2016 | 15.5"F/15.0"R | N/A | N/A |
| 2017 | 15.5"F/15.0"R | N/A | N/A |
| 2018 | 15.5"F/15.0"R | N/A | N/A |
| 2019 | 15.5"F/15.0"R | N/A | 15.0"F/13.0"R |
| 2020 | 15.5"F/15.0"R | 16.5"F/14.6"R | 15.0"F/13.0"R |
| 2021 | N/A | 16.5"F/14.6"R | 15.0"F/13.0"R |
| 2022 | N/A | 16.5"F/14.6"R | 15.0"F/13.0"R |

Replace your 2015-2023 Mustang brake rotors with a quality replacement set from LMR.com. Rotor size follows your trim, not your model year, GT, Performance Pack, Mach 1, and Bullitt models run 15" front rotors, GT350/GT350R step up to 15.5", and GT500 tops out at 16.5", the same sizing every year each trim was offered....
