Subaru Impreza STI 2008 with 18×9 / 18×9-inch Infinitewerks Mt Wheel

About This Subaru Impreza STI 2008 Build

We love featuring real builds from real owners. This Subaru Impreza STI 2008 sits on a set of 18×9 / 18×9-inch Infinitewerks Mt wheels, and the result speaks for itself.

The owner chose Infinitewerks for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Subaru Impreza STI builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Infinitewerks Mt creates a look that balances aggression with elegance.

Fitment Breakdown: Infinitewerks Mt on the Subaru Impreza STI 2008

I walked up to this STI at the meet, and the stance immediately caught my eye. The Infinitewerks MT wheels in an 18x9 square setup fill those wide GD-chassis arches perfectly. With a +15 offset all around, the wheels push right to the edge of the fenders.

That +15 offset on a 9-inch wide barrel creates a massive amount of poke if you aren't careful. Since this owner opted for air suspension, they can tuck the lip right under the fender when parked. It eliminates that awkward gap we usually see on stock suspension.

I checked the caliper clearance while the car was aired out, and those big Brembos sit comfortably behind the spoke design. Infinitewerks engineered these faces with plenty of room for high-performance brake kits. You won't need spacers to clear the calipers here.

The hub bore on these wheels matches the Subaru 56.1 center bore perfectly. This ensures a vibration-free ride when you finally decide to air up and hit the road. I hate dealing with hub rings, so seeing a direct fit makes me smile.

Looking at the barrels, that step-lip design adds a ton of depth to the 18-inch profile. It creates a classic, aggressive look that suits the raw nature of an '08 STI. The visual weight sits right where it needs to be for a track-inspired aesthetic.

You have to watch the inner fender liners, though. When driving low, the tires can easily catch the plastic clips inside the wheel wells. I recommend a slight roll of the rear quarters if you plan to drive at a lower ride height.

Overall, this fitment balances aggressive aesthetics with usable geometry. The square setup makes tire rotations a breeze, which is great for daily driving. It is a bold choice that defines the character of this entire build.

What We Recommend for Subaru Impreza STI 2008 Owners

If you own an 08 STI, stop buying narrow, high-offset wheels. You want to aim for an 18x9.5 setup if you want that perfect flush look without too much headache. Anything higher than a +35 offset usually looks sunk, which kills the look of these wide-body fenders.

I always suggest a square setup for these AWD cars to keep the drivetrain happy. Staggered wheels might look cool, but they wreck your center differential over time. Stick to the same width and diameter at all four corners.

Tire stretch is a personal choice, but don't go overboard. A mild stretch on a 245/35 or 255/35 tire gives you that clean look without compromising safety. Too much stretch makes the car handle like a shopping cart in the rain.

Fender rolling is almost mandatory if you want to run an aggressive offset like this +15. Take your time, use a heat gun, and don't rush the paint. A cracked fender flare ruins the entire vibe of an otherwise clean build.

Finally, stop using cheap, cast wheel spacers. If you need to dial in the fitment, buy hub-centric spacers from a reputable brand. Your wheel bearings will thank you when you avoid those cheap, wobbling alternatives.

Style and Build Analysis

The gold finish on these Infinitewerks MTs is legendary for a reason. It creates a brilliant, high-contrast look against the body color of this STI. Gold wheels and a Subaru are a match made in rally heaven.

The MT design features a refined, multi-spoke face that looks timeless. It isn't trying to be too futuristic, which works well with the slightly rounded lines of the 2008 body style. It feels purposeful and aggressive, not gimmicky.

When the car airs out, the way the rim lip tucks behind the fender arch is pure art. The proportions of the 18-inch wheels feel just right for the scale of the car. It avoids the "wagon wheel" look of 19-inch rims while filling the space better than 17s.

I have featured hundreds of Subarus, but this one sticks in my memory. Most owners go for safe, predictable wheel choices, but this owner took a risk. The bold offset and the gold finish turn a standard STI into a show-stopper.

Everything about this car feels intentional, from the ride height to the wheel choice. It shows that you don't need a crazy wide-body kit to make a statement. Sometimes, the right wheels and a good suspension setup are all you need.

Why We Love This Build

This STI stopped me in my tracks the moment I entered the lot. The gold Infinitewerks MTs catch the sunlight and glow against the dark asphalt. It is the kind of build that makes you stop and stare for ten minutes straight.

I love how the wheels tuck perfectly into the arches when the air bags release. It creates a seamless, aggressive profile that looks ready for a magazine cover. The stance is just perfect.

Every gearhead dreams of a car that looks this clean and performs this well. If you are on the fence about your own wheel purchase, take notes from this Subaru. You need this setup in your life.

Full Specs Breakdown

Here is exactly what this owner is running. We break down every detail so you can replicate this build or use it as a starting point for your own setup.

  • Car Make & Model: Subaru Impreza STI 2008
  • Vehicle Color:
  • Wheel Brand & Model: Infinitewerks Mt
  • Wheel Size: 18×9 / 18×9
  • Offset: 15 / 15
  • Wheel Finish: Gold
  • Tires: Pirelli PZERO Nero GT 225/35 24.2″x8.9″ / 225/35 24.2″x8.9″
  • Suspension: Air Suspension

Before You Buy: Fitment Checklist

Wheel sizes explained - diameter, width, offset and backspacing guide
Understanding wheel sizing: diameter, width, offset and backspacing all affect fitment on your Subaru Impreza STI.

We talk to Subaru Impreza STI owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 18×9 / 18×9-inch wheels fit my Subaru Impreza STI? Yes, but fitment depends on width, offset, and tire size working together. A wrong offset means rubbing. A wrong tire size means poor handling. Always verify all three.

Do I need to modify my fenders? That depends on your offset and suspension. A conservative offset with stock ride height usually fits without modification. Go aggressive and you may need to roll or pull your fenders.

Can I daily-drive this setup? Absolutely. Thousands of Subaru Impreza STI owners run 18×9 / 18×9-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Subaru Impreza STI2008 with 18×9 / 18×9-inch Infinitewerks Mt Wheel Gallery

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