2019 Subaru WRX STI

2019 Subaru WRX STI wheel fitment at a glance

This 2019 Subaru WRX STI is running Cosmis Racing Wheels Cosmis-Racing R1 in 18x9.5 +35 at all four corners, wrapped in 265/35R18 Michelin Pilot Sport 4 S tires.

It sits on Swift Springs coilovers with a flush stance, meaning the wheel face lines up with the fender.

If you are searching for Subaru WRX STI wheel fitment, Cosmis Racing Wheels Cosmis-Racing R1 on a Subaru WRX STI, 18x9.5 +35 wheels on a WRX STI, or what tire size goes with that setup, this build is a real-world answer, photographed and measured by the owner.

Cosmis Racing Wheels Cosmis-Racing R1 18x9.5 +35 specs

The wheels are 18-inch in diameter and 9.5 inches wide with a +35 offset.

A +35 offset on a 9.5-inch wide wheel puts the wheel face in a mild push toward the fender. Lower offset moves the wheel outward; higher offset tucks it in.

Cosmis Racing Wheels Cosmis-Racing R1 18x9.5 +35 on a Subaru WRX STI is a common WRX STI question, and this page shows exactly how it sits, how it clears, and what the owner changed to make it work.

265/35R18 tires on 18x9.5 wheels

The tire size is 265/35R18: a 265 mm section width with a 35 aspect ratio on the 18-inch wheel, which gives a meaty fit (the tire is wider than the wheel, so the sidewall bulges a little and gives more cushion).

The owner chose Michelin Pilot Sport 4 S. We stock Versatyre CRX4000 265/35R18 97W - CRX40001812 at $82 each in this size, and other 265/35R18 tires through the 265/35R18 tire search.

Searching for 265/35R18 tires on a Subaru WRX STI, or the right tire size for 18x9.5 +35 wheels? This is one owner's proven combination, and every wheel and tire package we sell ships mounted, balanced and ready to bolt on.

Suspension, stance and clearance

The car is lowered on Swift Springs coilovers, which lets the owner dial in ride height and camber to clear 18x9.5 +35 and get the flush look.

No rubbing at all, front or rear, no spacers, rolled fenders. Rolling or pulling the fender is what most owners do once the wheel sits this close; it keeps the tire from catching the lip over bumps.

Stance: flush. The wheel face lines up with the fender. Flush fitment on a Subaru WRX STI comes down to the offset and width above; copy them and you get the same result.

Will 18x9.5 +35 fit a Subaru WRX STI?

Will Cosmis Racing Wheels Cosmis-Racing R1 18x9.5 +35 fit a 2019 Subaru WRX STI? This owner's answer is yes, on Swift Springs coilovers, with no rubbing.

6 other Subaru WRX STI builds in the gallery run sizes like 18x10.5, 19x9.5, 18x9.5, so you can compare offsets, tire sizes and suspension before you order. See all Subaru builds.

Our fitment guarantee covers wheels bought through wheels that fit the 2019 Subaru WRX STI: pick the car, and every size shown is one we have checked for bolt pattern, hub bore and clearance.

Buy the same wheels and tires for your Subaru WRX STI

Cosmis Racing Wheels Cosmis-Racing R1 is not something we carry today. For the same look on your WRX STI, browse wheels that fit the 2019 Subaru WRX STI in 18-inch sizes near +35 offset; the Subaru WRX STI wheel and tire packages there ship mounted and balanced.

Financing is available on every set, and 2019 Subaru WRX STI wheels ship free when bought as a wheel and tire package.

About this build

Every car in the Threepieceus gallery was submitted by its owner or collected from real builds, with the wheel size, offset, tire size, suspension and clearance recorded as fitted. Check two or three builds with the same Subaru WRX STI and size before you order, and add your own ride once it is done so the next owner can see what fits.