Rays TE37-Style Gloss White 6-Spoke Forged Wheels
Replica · Gloss White
2019 Subaru WRX STI S209 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Subaru WRX STI S209 wheels? This page gives the 2019 Subaru WRX STI S209 bolt pattern (5x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Subaru WRX STI S209 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2019 Subaru WRX STI S209 uses a 5x114.3 bolt pattern with a 56.1 mm centre bore and M12x1.25 lug nuts. Factory wheels: 19x9J ET45. For aftermarket wheels, 19x10J ET38 sits flush.
Forged wheels for the 2019 Subaru WRX STI S209 — drilled 5x114.3 with a 56.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
Get a quote for this car
Subaru WRX STI S209 (2019): 5x114.3 bolt pattern, 56.1mm center bore, OE 19x9J ET45. Forged wheel fitment specs from ANKUSI.
Bolt Pattern5x114.3
Wheel Bolt/NutM12x1.25 Nut
Center Bore56.1mm
Wheel Load Rating700–850 kg/wheel (Performance / Sports Car segment reference)
Caliper TypeBrembo monoblock 4-piston fixed front (OEM, STI)
Year2019
Category5-Lug Performance / Tuner
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 19x9J ET45 |
| Flush Fitment | 19x10J at ET38 offset |
Forged Wheel Designs for the Subaru WRX STI S209
Every design below is forged to order, so it can be machined to the Subaru WRX STI S209's 5x114.3 bolt pattern and 56.1 mm center bore, with the width and offset calculated for your setup.
Rays-Style Chrome 6-Spoke Forged Wheels
Replica · Chrome
Subaru OEM-Style Gold Chrome 10-Spoke Forged Wheels
Replica · Gold / Chrome
Vossen HF-2-Style Gloss Black 10 Y-Spoke Machined Face Forged Wheels
Replica · Gloss Black
Rays-Style Gloss Black 6-Spoke Polished-Lip Forged Wheels
Replica · Gloss Black / Gunmetal
Rays-Style Chrome 6-Spoke Deep-Lip Forged Wheels
Replica · Chrome
Gloss Black 6-Spoke Forged Wheels
Replica · Gloss Black
OZ Racing Gloss Black Full-Face Forged Wheels
Replica · Gloss Black
How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
A sedan's wheel spec is a balance point the factory tuned between ride comfort, steering feel, and everyday durability. Forging lets us hold that same structural margin while cutting rotational mass, which is where most of the real-world benefit — quicker steering response, marginally better ride — actually comes from.
The Subaru WRX STI S209 ships from the factory on a 5x114.3 bolt pattern with a 56.1mm center bore and a 19x9J ET45 wheel. Our flush reference for the Subaru WRX STI S209 is 19x10J ET38.; our maximum aggressive reference is 19x10.5J ET32. — beyond that, expect clearance issues against the fender liner without further modification.
Subaru WRX STI S209 OE Wheel Specs
The Subaru WRX STI S209 ships from the factory on 5x114.3 bolt pattern wheels with a 56.1mm center bore. The stock wheel size is 19x9J ET45, offering a balanced ride that suits most owners without any rubbing or clearance concerns.
Why the factory spec works for most owners:
- Balances ride comfort with steering response and highway efficiency.
- Wide tire and wheel availability at the factory diameter keeps replacement costs low.
- Lower unsprung weight than larger aftermarket wheels helps ride quality and acceleration.
- Guaranteed clearance against brake calipers and suspension components.
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Subaru WRX STI S209 (2019) we drill the 5x114.3 pattern and cut the centre bore to 56.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Offset and Backspacing: Factory Wheel vs Options
Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.
| Setup | Size | ET | Backspacing | Inward vs OE | Outward vs OE |
|---|---|---|---|---|---|
| Factory (OE) | 19x9J | ET45 | 6.77 in (172 mm) | — | — |
| Flush | 19x10J | ET38 | 7.00 in (178 mm) | +6 mm | +20 mm |
| Maximum | 19x10.5J | ET32 | 7.01 in (178 mm) | +6 mm | +32 mm |
Vehicles With the Same Hub as the Subaru WRX STI S209 (5x114.3, 56.1 mm Bore)
In our database, 19 other Subaru entries use exactly the same 5x114.3 bolt pattern and 56.1 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
5x114.3 is used by 20.0% of the vehicle pages in our English fitment guide (1,300 of 6,503); 1.5% of those also use a 56.1 mm center bore.
Hub-Centric Rings for a 56.1 mm Center Bore
A wheel with a center bore larger than 56.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 57.1 mm | 57.1 → 56.1 mm |
| 60.1 mm | 60.1 → 56.1 mm |
| 63.4 mm | 63.4 → 56.1 mm |
| 64.1 mm | 64.1 → 56.1 mm |
| 73.1 mm | 73.1 → 56.1 mm |
ANKUSI forged wheels are bored to exactly 56.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Subaru WRX STI S209 use?
The 2019 Subaru WRX STI S209 uses a 5x114.3 bolt pattern.
How many lug bolts does the Subaru WRX STI S209 use?
The Subaru WRX STI S209 uses a 5-lug bolt pattern (5x114.3), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Subaru WRX STI S209?
The Subaru WRX STI S209's center bore is 56.1mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Subaru WRX STI S209?
Factory wheels on the Subaru WRX STI S209 are 19x9J ET45.
What does a flush wheel fitment look like on the Subaru WRX STI S209?
For a flush look with minimal to no rubbing, we recommend 19x10J at ET38 offset as a starting point on a stock or mildly lowered Subaru WRX STI S209.
Do I need wheel spacers for my Subaru WRX STI S209?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Subaru WRX STI S209?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 7" of backspacing.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Subaru WRX STI S209?
The Subaru WRX STI S209 runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.
Sources and Last Update
Data checked against: avtoreference.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 19x9 wheels · 19 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.