2020 Subaru WRX STI Wheel & Tire Sizes
Complete fitment guide for the 2020 Subaru WRX STI: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x114.3 bolt pattern — for every trim.
Bolt Pattern
5x114.3
Centre Bore
56.1 mm
Lug nuts
M12 x 1.25
Torque: 120 Nm
Wheel Diameters
19"–20"
Factory (OEM) Tire Sizes for the 2020 Subaru WRX STI
OEM sizes
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2020 Subaru WRX STI Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2020 Subaru WRX STI configuration.
2.5T · Saloon
H4 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 19–20" |
| Wheel width | 8.5–9.5" |
| Wheel offset | 30–40 mm |
| Tire width | 245–255 mm |
2020 Subaru WRX STI Fitment FAQ
What is the bolt pattern on a 2020 Subaru WRX STI?
The 2020 Subaru WRX STI uses a 5x114.3 bolt pattern (5 lug nuts on a 114.3 mm circle) with a 56.1 mm centre bore.
What size tires fit a 2020 Subaru WRX STI?
Factory (OEM) tire sizes for the 2020 Subaru WRX STI include 245/35ZR19, 255/30ZR20. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2020 Subaru WRX STI?
Depending on trim, the 2020 Subaru WRX STI accepts wheels from 19" up to 20" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 2020 Subaru WRX STI use?
The 2020 Subaru WRX STI uses M12 x 1.25 lug nuts, torqued to 120 Nm.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.