Mitsubishi Eclipse GST 1998 with 18×9.5 / 18×9.5-inch Cosmis Racing MRII Wheel

About This Mitsubishi Eclipse GST 1998 Build

We love featuring real builds from real owners. This Mitsubishi Eclipse GST 1998 sits on a set of 18×9.5 / 18×9.5-inch Cosmis Racing MRII wheels, and the result speaks for itself.

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

Fitment Breakdown: Cosmis Racing MRII on the Mitsubishi Eclipse GST 1998

I walked up to this GST and the first thing that hit me was how aggressive these 18x9.5 Cosmis MRII wheels sit. An offset of +15 pushes the face out right to the edge of the stock fenders. It turns the boxy 90s silhouette into something far more menacing.

We ran into a challenge with the front brakes on this platform. The MRII spokes have a killer curved design that clears the factory GS-T calipers without needing a spacer. That is a massive win for anyone trying to keep the hub assembly clean.

The hub bore on these wheels matches the Mitsubishi specs perfectly. We avoided any vibration issues because the fit is tight and true. You definitely want hub-centric rings if you go this route to ensure everything stays centered at high speeds.

The 9.5-inch width fills the wheel wells completely. We saw zero clearance issues with the inner strut housing because the offset pushes the barrel outward. You have plenty of room to clear your coilover bodies.

You need to watch the fender lips, though. With an 18x9.5 +15 setup, the tires will kiss the plastic liners if you drive hard on bumpy roads. I strongly suggest rolling your fenders flat before you drop the car on coilovers.

The barrel lip depth on the MRII gives the car a deep, concave look that draws the eye in. It breaks up the flat planes of the Eclipse bodywork. It makes the car look wider than it actually is.

Running coilovers allowed us to dial in the exact stance we wanted. We kept the ride height firm to prevent any sudden compression rubbing. This setup bridges the gap between show car looks and real-world performance.

What We Recommend for Mitsubishi Eclipse GST 1998 Owners

If you want to replicate this look, stick to an 18-inch diameter. Anything smaller gets lost in the wheel arches of a 2G Eclipse. Anything larger looks like a cartoon and kills your ride quality.

A square 18x9.5 setup is the gold standard for this platform. It allows you to rotate your tires and keeps the handling predictable. Staggered setups on a FWD-biased DSM platform just lead to unnecessary understeer.

Focus your offset between +15 and +25 for that flush look. If you go lower than +15, you will be pulling your fenders until they lose their shape. If you go higher than +25, you might start rubbing on the inside control arms.

Do not be afraid of a light tire stretch to tuck the sidewall. A 235 or 245 width tire works best here to keep the rubber away from the fender edge. It makes the fitment look intentional and clean rather than sloppy.

Avoid cheap spacers at all costs. If you need a tiny bit of extra clearance for your brakes, buy high-quality hub-centric units. The last thing you want is a wheel vibrating at highway speeds because of a loose spacer.

Style and Build Analysis

The white finish on these MRII wheels pops against the darker body paint of this GST. It gives the car a rally-inspired aesthetic that feels authentic to the Mitsubishi brand. It looks like it belongs on a mountain pass or a circuit track.

The MRII spoke pattern is classic. It uses a multi-spoke geometry that is strong but lightweight. It feels like a throwback to the golden era of Japanese tuning culture.

Stance is everything on these cars. The way the wheels poke just enough to catch the light creates a shadow line along the fender. It gives the car a purposeful, track-ready posture that demands respect.

Compared to other builds we have seen, this one keeps the spirit of the 90s alive. Many owners go for modern, busy designs that clutter the look of the Eclipse. These wheels keep the lines clean and simple.

The proportions are spot on. Because the wheels are wide, they push the visual weight of the car down to the asphalt. It eliminates the "floaty" look that stock 2G Eclipses often suffer from.

Why We Love This Build

Seeing this GST in person reminded me why we love the DSM scene. The white-on-color contrast turns an aging platform into a modern head-turner. The way the light hits those white spokes while the car is rolling is pure magic.

It captures that perfect balance of aggressive fitment and functional street styling. We love how the wheels fill the arches without looking like they were forced into place. This is exactly how a 2G Eclipse should look.

It inspires me to get back into the garage and start turning wrenches again. You don't need a million dollars to make a car look iconic. You just need the right vision and a set of wheels that speak for themselves.

This car proves that the right fitment changes everything.

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: Mitsubishi Eclipse GST 1998
  • Vehicle Color:
  • Wheel Brand & Model: Cosmis Racing MRII
  • Wheel Size: 18×9.5 / 18×9.5
  • Offset: 15 / 15
  • Wheel Finish: White
  • Tires: Forceum Hena 225/40 25.1″x8.9″ / 225/40 25.1″x8.9″
  • Suspension: Coilovers

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 Mitsubishi Eclipse GST.

We talk to Mitsubishi Eclipse GST owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 18×9.5 / 18×9.5-inch wheels fit my Mitsubishi Eclipse GST? 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 Mitsubishi Eclipse GST owners run 18×9.5 / 18×9.5-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Mitsubishi Eclipse GST1998 with 18×9.5 / 18×9.5-inch Cosmis Racing MRII Wheel Gallery

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