What is the recommended tire pressure for a 2023 Subaru WRX?

The 2023 Subaru WRX uses 35 PSI cold on the front axle and 33 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.

What tire size does the 2023 Subaru WRX use?

The standard (base trim) tire size for the 2023 Subaru WRX is 245/40R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.

How do I convert the 2023 Subaru WRX tire pressure to bar?

35 PSI = 2.4 bar (front) and 33 PSI = 2.3 bar (rear). In kPa: 241 kPa front and 228 kPa rear. Multiply PSI × 0.0689 to convert to bar.

Why are the front and rear tire pressures different on the 2023 Subaru WRX?

The 2023 Subaru WRX uses 35 PSI front and 33 PSI rear because the two axles carry different loads. The front axle carries roughly 58% of the vehicle's 1520 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.

What happens if the 2023 Subaru WRX tires are underinflated?

Running 5+ PSI low on the Subaru WRX causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.

2023 Subaru WRX Tire Pressure

OEM cold pressure spec — verified for the 2022–2024 generation

Recommended cold pressure (PSI)

Front

2.4 bar · 241 kPa

Rear

2.3 bar · 228 kPa

Tire size

245/40R18

Curb weight

1,520 kg

Front axle load

58%

Customize for your load & driving style

Pre-filled with Subaru WRX specs. Adjust weight or style below.

Recommended COLD pressure

30.9 / 22.4 PSI

Front (cold): 30.9 PSI(2.13 bar)
Rear (cold): 22.4 PSI(1.54 bar)
Front (hot est.): 34 PSI
Rear (hot est.): 24.6 PSI

Street setting: balanced for comfort, wear, and fuel economy. Always measure cold.

Other Subaru WRX years

2024 WRX 2022 WRX 2021 WRX 2020 WRX All years →

FAQ — 2023 Subaru WRX

What is the recommended tire pressure for a 2023 Subaru WRX?: The 2023 Subaru WRX uses 35 PSI cold on the front axle and 33 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.
What tire size does the 2023 Subaru WRX use?: The standard (base trim) tire size for the 2023 Subaru WRX is 245/40R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.
How do I convert the 2023 Subaru WRX tire pressure to bar?: 35 PSI = 2.4 bar (front) and 33 PSI = 2.3 bar (rear). In kPa: 241 kPa front and 228 kPa rear. Multiply PSI × 0.0689 to convert to bar.
Why are the front and rear tire pressures different on the 2023 Subaru WRX?: The 2023 Subaru WRX uses 35 PSI front and 33 PSI rear because the two axles carry different loads. The front axle carries roughly 58% of the vehicle's 1520 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.
What happens if the 2023 Subaru WRX tires are underinflated?: Running 5+ PSI low on the Subaru WRX causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.