2018 Subaru WRX STI tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 2018 Subaru WRX STI.

2018 Subaru WRX STI tire sizes

255/30R20 245/40R18 245/35R19 255/35R19

Bolt pattern

5x114.3

Other years

2014 2015 2016 2017 2018 2019 2020 2021 All 2014–2023

Fitment tables

5 trims sold in 2018

Open a trim for its factory package and every alternative size, front and rear.

Subaru WRX STI VA Facelift

2018 – 2023 5 trims

WRX STI 2.0T (CBA-VAB)

304 hp · EJ20 H4 245/40 ZR18 97W 3 fitments

GenerationVA Facelift 2018–2023

MarketJapan

Power304 hp

EngineEJ20 H4, Petrol

Center bore56.1 mm

PCD5x114.3

ThreadM12 x 1.25

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
245/40 ZR18 97W	18x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims
245/35 ZR19 89W	19x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims
255/30 ZR20 92Y	20x9 ET48 ~~5x114.3~~	2.3	Tires Rims

WRX STI 2.0T RA-R (CBA-VAB)

325 hp · EJ20 H4 245/40 ZR18 97Y 2 fitments

GenerationVA Facelift 2018–2023

MarketJapan

Power325 hp

EngineEJ20 H4, Petrol

Center bore56.1 mm

PCD5x114.3

ThreadM12 x 1.25

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
245/40 ZR18 97Y	18x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims
255/35 ZR19 95Y	19x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims

WRX STI 2.0T S208 (CBA-VAB)

325 hp · EJ20 H4 255/35 ZR19 92Y 2 fitments

GenerationVA Facelift 2018–2023

MarketJapan

Power325 hp

EngineEJ20 H4, Petrol

Center bore56.1 mm

PCD5x114.3

ThreadM12 x 1.25

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
255/35 ZR19 92Y	19x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims
255/30 ZR20 89Y	20x9 ET48 ~~5x114.3~~	2.3	Tires Rims

WRX STI 2.5T

305 hp · EJ25 H4 245/35 ZR19 89W 2 fitments

GenerationVA Facelift 2018–2023

MarketUSA

Power305 hp

EngineEJ25 H4, Petrol

Center bore56.1 mm

PCD5x114.3

ThreadM12 x 1.25

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
245/35 ZR19 89W	19x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims
255/30 ZR20 92Y	20x9 ET48 ~~5x114.3~~	2.3	Tires Rims

WRX STI 2.5T

296 hp · 2.5L EJ257 H4 245/40 R18 97W 3 fitments

GenerationVA Facelift 2018–2023

MarketEurope

Power296 hp

Engine2.5L EJ257 H4, Petrol

Center bore56.1 mm

PCD5x114.3

ThreadM12 x 1.25

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
245/40 R18 97W	18x8.5 ET55 ~~5x114.3~~	–	Tires Rims
245/35 R19 89W	19x8.5 ET55 ~~5x114.3~~	2.2	Tires Rims
255/30 ZR20 92Y	20x9 ET48 ~~5x114.3~~	2.3	Tires Rims

Reading the table

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.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.