tirewheelguide

2014 Subaru Impreza WRX STI tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2014 trim.

Tires for the 2014 Subaru Impreza WRX STI

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

  1. 245/40R18 Best-rated standard on 5 trims · Japan, USA, Europe
    Check price on Amazon · 245/40R18
  2. 245/35R19 Best-rated optional on 5 trims · Japan, USA, Europe
    Check price on Amazon · 245/35R19
  3. 255/30R20 Best-rated optional on 4 trims · Japan, USA, Europe
    Check price on Amazon · 255/30R20

Also listed: 255/30R19

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Trims sold in 2014
5
Generation
GR sold in 3 market versions

5 trims sold in 2014

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 5 trims

Japan

3 trims
Impreza WRX STI 2.0T (CBA-GVA) 304 hp · H4 245/40R18 91W 3 fitments
Generation
GR · 2008–2014
Market
Japan
Power
304 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 sizeRim size and bolt patternPressure, psi
245/40R18 91WRim 18x8.5 ET55 5x114.333 psi
245/35R19 89YRim 19x8.5 ET52 5x114.336 psi
255/30R19 91YRim 19x9 ET48 5x114.336 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.

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 sizeRim size and bolt patternPressure, psi
245/40R18 91ZRim 18x8.5 ET55 5x114.333 psi
245/35R19 91ZRim 19x8.5 ET53 5x114.336 psi
255/30R20 91ZRim 20x9 ET48 5x114.336 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 sizeRim size and bolt patternPressure, psi
245/40R18 91ZRim 18x8.5 ET55 5x114.333 psi
245/35R19 91ZRim 19x8.5 ET53 5x114.336 psi
255/30R20 91ZRim 20x9 ET48 5x114.336 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 sizeRim size and bolt patternPressure, psi
245/40R18 91WRim 18x8.5 ET55 5x114.333 psi
245/35R19 91WRim 19x8.5 ET52 5x114.336 psi
255/30R20 89ZRim 20x9 ET48 5x114.336 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.

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.
Trims sold in 2014
5
Generation
GR sold in 3 market versions
Other years
All years (1992–2014)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

Open the size calculator

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