Recommended Tire Pressure for Subaru WRX STI
What should tire pressure be on Subaru WRX STI?
Check out the recommended Subaru WRX STI tire pressure in psi depending on the year of production, trim level and original equipment tire size.
Find your Subaru WRX STI year in the charts below to see the available stock tire sizes and corresponding tire inflation pressures with load index and speed rating.
2021 Subaru WRX STI Tire Pressure
Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.
| Tire size | Load index | Speed rating | PSI (Front / Rear) |
| P 245/35 R19 | 93 | W | 33 / 32 |
| P 255/30 R19 | 95 | W | 36 / 33 |
| P 255/45 R19 | 95 | Y | 33 / 32 |
| P 255/30 R20 | 96 | Y | 36 / 33 |
2020 Subaru WRX STI Tire Pressure
Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.
| Tire size | Load index | Speed rating | PSI (Front / Rear) |
| P 235/50 R17 | 96 | V | 33 / 32 |
| P 225/25 R18 | 82 | W | 33 / 32 |
| P 245/35 R19 | 93 | W | 33 / 32 |
| P 245/30 R20 | 90 | Y | 36 / 33 |
| P 255/30 R20 | 96 | Y | 36 / 33 |
2019 Subaru WRX STI Tire Pressure
Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.
| Tire size | Load index | Speed rating | PSI (Front / Rear) |
| P 225/40 R19 | 97 | V | 33 / 32 |
| P 235/30 R19 | 85 | V | 36 / 33 |
| P 245/35 R19 | 93 | W | 33 / 32 |
| P 265/35 R19 | 95 | Y | 33 / 32 |
| P 275/30 R19 | 94 | Z | 36 / 33 |
| P 255/30 R20 | 96 | Y | 36 / 33 |
| P 255/35 R20 | 95 | Y | 33 / 32 |
| P 255/45 R20 | 106 | V | 33 / 32 |
2018 Subaru WRX STI Tire Pressure
Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.
| Tire size | Load index | Speed rating | PSI (Front / Rear) |
| P 245/50 R17 | 95 | V | 33 / 32 |
| P 245/40 R17 | 97 | V | 33 / 32 |
| P 245/25 R18 | 88 | W | 33 / 32 |
| P 275/35 R18 | 90 | W | 33 / 32 |
| P 245/35 R19 | 93 | W | 33 / 32 |
| P 265/40 R19 | 97 | Y | 36 / 33 |
| P 255/30 R20 | 96 | Y | 36 / 33 |
| P 265/35 R20 | 95 | Y | 33 / 32 |
| P 265/20 R21 | 97 | Y | 36 / 33 |
2017 Subaru WRX STI Tire Pressure
Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.
| Tire size | Load index | Speed rating | PSI (Front / Rear) |
| P 245/40 R18 | 96 | W | 33 / 32 |
| P 245/50 R18 | 100 | V | 33 / 32 |
| P 235/35 R19 | 91 | W | 33 / 32 |
| P 245/35 R19 | 93 | W | 33 / 32 |
| P 255/35 R19 | 95 | Y | 36 / 33 |
| P 265/40 R19 | 97 | Y | 36 / 33 |
| P 255/30 R20 | 96 | Y | 36 / 33 |
| P 265/25 R20 | 96 | V | 33 / 32 |
| P 235/20 R21 | 92 | Y | 36 / 33 |
2016 Subaru WRX STI Tire Pressure
Monitor tire pressure with the TPMS or gauges. Fix flat tires with tire inflators.
| Tire size | Load index | Speed rating | PSI (Front / Rear) |
| P 235/55 R16 | 97 | H | 33 / 32 |
| P 235/40 R16 | 94 | V | 36 / 35 |
| P 235/55 R18 | 97 | W | 36 / 35 |
| P 245/40 R18 | 96 | W | 33 / 32 |
| P 225/25 R19 | 91 | Y | 36 / 33 |
| P 235/45 R19 | 92 | W | 33 / 32 |
| P 245/35 R19 | 93 | W | 33 / 32 |
| P 255/35 R19 | 95 | Y | 36 / 33 |
| P 265/30 R19 | 97 | W | 33 / 32 |
| P 255/20 R20 | 92 | Y | 36 / 33 |
| P 255/30 R20 | 96 | Y | 36 / 33 |
| P 265/30 R21 | 95 | W | 36 / 33 |
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