2007–2014 · hatchback / saloon
The third-generation Impreza covers the hatchback and saloon WRX and STI, including the wide-arch cars from 2011. Most owners go to 18x9.5 wheels with 265/35 R18 tyres, so offset choice and arch rolling matter more than diameter. The WRX and STI hubs are drilled differently, which catches people out when buying used wheels.
5x100 / 5x114.3 bolt pattern · 56.1 mm centre bore · Stock wheels: 18 × 8.5, 17 × 8 inch · Stock tyres: 245/40 R18, 235/45 R17
Updated 2026-10-31 · High source confidence. Check your exact trim and market. How we check specs
| Specification | Value |
|---|---|
| Bolt pattern | |
| Stock tyre sizes | |
| Centre bore | 56.1 mm |
| Fastener and thread | Wheel nut, M12x1.25 |
| Tightening torque | Confirm in your handbook |
Factory options vary by trim and market. Match your car to the row below and check its tyre placard before using it as a baseline.
| Trim | Axle | Wheel | Tyre |
|---|---|---|---|
| WRX STI 2008–2014, 18-inch alloy (BBS on some versions) | Front and rear | 18 × 8.5 inch, ET55 | 245/40 R18 |
| WRX 2011–2014 (US), 17-inch alloy | Front and rear | 17 × 8 inch, ET53 | 235/45 R17 |
Read these before choosing wheels for the Impreza WRX / WRX STI: they explain the offset, fitment and hub numbers in this guide.
Starting points for a build. Read the notes with each setup, especially if your car is lowered or has different brakes.
The most common aggressive size on this chassis. ThreePiece's GR/GV fitment roundup includes a 2013 STI saloon on 18x9.5 ET38 Gram Lights with 265/35 R18 tyres and the arches rolled all round. Expect to roll the arches, and add negative camber if the car is lowered.
A slightly more tucked version of the same size. The ThreePiece roundup includes a WRX saloon on 18x9.5 ET45 Enkei wheels with 265/35 R18 tyres on coilovers, with front and rear arches rolled and no rubbing reported.
FastWRX recommends this size for the 2011–2014 WRX and 2008–2014 STI, and says it needs minor rolling of the rear arches.
FastWRX lists 17x9 ET42 with 245/40 R17 or 255/40 R17 for the 2011–2014 WRX and the STI. It suits WRX owners wanting cheaper 17-inch tyres; on an STI, only 17-inch designs made to clear the Brembos will fit.
ET35 to ET55
Factory wheels are ET53 to ET55 and most aftermarket fitments sit between ET35 and ET48. FastWRX warns that ET30 and lower will not fit without major changes.
Measure before ordering
A maximum width has not been confirmed. Tyre shape, ride height and alignment all change the available space.
These figures belong to the setups described here. Combining the widest wheel with either end of the offset range does not guarantee a safe fit. For how ET moves the wheel in and out, read wheel offset explained; for how far the tyre can sit out, see flush, poke and tucked fitment.
Upload a photo and start with a look that suits the Impreza WRX / WRX STI. Try the wheels, colour and stance before you spend on parts.
An AI preview shows the look. It cannot verify physical fitment.
These tools start with the WRX STI 2008–2014, 18-inch alloy (BBS on some versions) front size. Choose your own trim or axle in the calculator if it differs.
The WRX is 5x100 and the STI is 5x114.3. Both have a 56.1 mm centre bore and M12x1.25 wheel nuts.
18x9.5 with 265/35 R18 tyres, usually at ET38 to ET45. The lower offsets normally need rolled arches and, when lowered, extra camber.
No. The WRX's 17x8 ET53 wheels are drilled 5x100, while the STI is 5x114.3, and the factory WRX wheel does not clear the STI's Brembo brakes.
18x8.5 ET55 with 245/40 R18 tyres throughout 2008–2014, including the BBS wheels fitted to some versions.
Factory tyre (tire) sizes for the 2007–2014 Subaru Impreza WRX / WRX STI GE/GH/GR/GV are 245/40 R18 and 235/45 R17, depending on trim. Your tyre placard shows the size for your car.
56.1 mm. Aftermarket wheels with a larger bore need hub-centric rings sized to it.
This guide is a starting point, not a fitment guarantee. Specs can differ by market, trim and previous modifications. Confirm all sizes, clearances and fastener requirements with a qualified wheel and tyre professional before buying or fitting parts.
More guides from Subaru or cars with the same bolt pattern. A matching pattern alone does not make a wheel interchangeable.