2023 Subaru WRX STI tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2023 trim.

Tires for the 2023 Subaru WRX STI

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

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

2018–2023 Latin America 1 trim

WRX STI 2.5T (Saloon) 296 hp · 2.5 L EJ257 H4 Petrol 2.5 L EJ257 H4 245/40R18 3 fitments

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

Fit	Tire size	Rim size and bolt pattern	Pressure, psi
OE	245/40R18	Rim 18x8.5 ET55 5x114.3	–
OE	245/35R19	Rim 19x8.5 ET55 5x114.3	33 F / 32 R psi
Alt	255/30R20	Rim 20x9 ET48 5x114.3	36 F / 33 R psi

What these columns mean

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
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.