2021 Subaru WRX S4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2021 trim.

Tires for the 2021 Subaru WRX S4

Sizes most trims come with first. Open your trim below for its exact size.

245/40R18 Best-rated standard on 1 trim · optional on 1

Check price on Amazon · 245/40R18
225/45R18 Best-rated standard on 1 trim

Check price on Amazon · 225/45R18
245/35R19 Best-rated optional on 2 trims

Check price on Amazon · 245/35R19

Also listed: 255/30R20

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Trims sold in 2021: 2
Generations: VB VA
Other years: 2017
2018
2019
2020
2021
2022
2023
2024
All years (2014–2026)

2 trims sold in 2021

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Subaru WRX S4 VB

2021–2027 1 trim

WRX S4 2.4T (5BA-VBH) 271 hp · 2.4L FA24 H4 245/40R18 97W 3 fitments

Generation: VB · 2021–2027
Power: 271 hp
Engine: 2.4L FA24 H4, Petrol
Center bore: 56.1 mm
Bolt pattern: 5x114.3
Thread: M12 x 1.25

Check price on Amazon · 245/40R18 Wheels 18x8.5 ET55 · 5x114.3 · 56.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/40R18 97W	Rim 18x8.5 ET55 ~~5x114.3~~	33 psi
245/35R19 89W	Rim 19x8.5 ET55 ~~5x114.3~~	33 psi
255/30R20 92Y	Rim 20x9 ET48 ~~5x114.3~~	36 psi

How to read 97W: 97 is the load index (up to 1,609 lb / 730 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET55 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Subaru WRX S4 VA

2018–2021 1 trim

WRX S4 2.0T (3BA-VAG) 296 hp · FA20 H4 225/45R18 94W 4 fitments

Generation: VA Facelift · 2018–2021
Power: 296 hp
Engine: FA20 H4, Petrol
Center bore: 56.1 mm
Bolt pattern: 5x114.3
Thread: M12 x 1.25

Check price on Amazon · 225/45R18 Wheels 18x7.5 ET55 · 5x114.3 · 56.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
225/45R18 94W	Rim 18x7.5 ET55 ~~5x114.3~~	33 psi
245/40R18 97W	Rim 18x8.5 ET55 ~~5x114.3~~	33 psi
245/35R19 89W	Rim 19x8.5 ET55 ~~5x114.3~~	33 psi
255/30R20 92Y	Rim 20x9 ET48 ~~5x114.3~~	36 psi

How to read 94W: 94 is the load index (up to 1,477 lb / 670 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET55 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.