2012 Subaru Impreza WRX STI tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2012 trim.

Tires for the 2012 Subaru Impreza WRX STI

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

245/40R18 Best-rated standard on 4 trims · Japan, USA, Europe

Check price on Amazon · 245/40R18
245/35R19 Best-rated optional on 4 trims · Japan, USA, Europe

Check price on Amazon · 245/35R19
255/30R20 Best-rated optional on 4 trims · Japan, USA, Europe

Check price on Amazon · 255/30R20

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Trims sold in 2012: 4
Generation: GR sold in 3 market versions
Other years: 2007
2008
2009
2010
2011
2012
2013
2014
All years (1992–2014)

4 trims sold in 2012

Sold in 3 market versions. Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Subaru Impreza WRX STI GR

2008–2014 4 trims

Japan

2 trims

Impreza WRX STI 2.0T (CBA-GVB) +1 variant 304 hp · EJ20 H4 245/40R18 91Z 3 fitments

Same tires and wheels on: 2.5T (CBA-GVF)

Generation: GR · 2008–2014
Market: Japan
Power: 304 hp
Engine: EJ20 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 91Z	Rim 18x8.5 ET55 ~~5x114.3~~	33 psi
245/35R19 91Z	Rim 19x8.5 ET53 ~~5x114.3~~	36 psi
255/30R20 91Z	Rim 20x9 ET48 ~~5x114.3~~	36 psi

Europe

1 trim

Impreza WRX STI 2.5T 296 hp · 2.5L EJ257 H4 245/40R18 91Z 3 fitments

Generation: GR · 2008–2014
Market: Europe
Power: 296 hp
Engine: 2.5L EJ257 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 91Z	Rim 18x8.5 ET55 ~~5x114.3~~	33 psi
245/35R19 91Z	Rim 19x8.5 ET53 ~~5x114.3~~	36 psi
255/30R20 91Z	Rim 20x9 ET48 ~~5x114.3~~	36 psi

USA

1 trim

Impreza WRX STI 2.5T 305 hp · H4 245/40R18 91W 3 fitments

Generation: GR · 2008–2014
Market: USA
Power: 305 hp
Engine: 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 91W	Rim 18x8.5 ET55 ~~5x114.3~~	33 psi
245/35R19 91W	Rim 19x8.5 ET52 ~~5x114.3~~	36 psi
255/30R20 89Z	Rim 20x9 ET48 ~~5x114.3~~	36 psi

How to read 91W: 91 is the load index (up to 1,356 lb / 615 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.

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.