About This Acura RSX Type-S 2006 Build
We love featuring real builds from real owners. This Acura RSX Type-S 2006 sits on a set of 18×9.5 / 18×9.5-inch Cosmis Racing XT-206R 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 Acura RSX Type-S builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Cosmis Racing XT-206R creates a look that balances aggression with elegance.

Fitment Breakdown: Cosmis Racing XT-206R on the Acura RSX Type-S 2006
I walked around this RSX for ten minutes straight just to take in the aggression. Running an 18x9.5 square setup with a +10 offset is a massive commitment on an RSX chassis. Most guys play it safe, but this owner went straight for the deep end.
The +10 offset pushes those wheels way out toward the edge of the fenders. You get that wide, menacing stance that makes the stock body look like a track car. It fills the wheel wells completely without needing massive spacers.
Those Cosmis XT-206R spokes have a killer curve that clears the stock Type-S calipers easily. You do not have to worry about the barrel hitting the brakes here. The design gives you that deep-dish look that defines the early 2000s tuner aesthetic perfectly.
The hub bore sits right, but you need to pay attention to your alignment specs. With this width, you are going to need some serious negative camber to tuck these under the fenders. If you try to run factory alignment, you will chew through your tires in a week.
The coilovers are doing a lot of heavy lifting on this build. You need the stiffness to keep the tires from slamming into the metal over bumps. I checked the inner clearance, and it is tight, so make sure your spring rates match the weight of the car.

Watch out for the rear quarter panels on this setup. The metal lip is sharp and will slice a tire if the car squats too hard under load. A professional fender roll is mandatory here if you want to drive this thing like you stole it.
Everything about this fitment screams track-day brawler. It is bold, it is loud, and it absolutely dominates the road presence of the RSX. This is how you take a classic platform and bring it into the modern era.
What We Recommend for Acura RSX Type-S 2006 Owners
If you want to run the XT-206R, be prepared to do some bodywork. You cannot just bolt these on and expect perfection without touching the fenders. Rolling the fenders is the absolute minimum requirement for this specific offset.
I always tell guys to stick to a square setup on the RSX. It keeps the handling predictable and makes rotating your tires so much easier. Staggered setups on a front-wheel-drive car like this just look weird and mess with the balance.
Do not go too wide on the tires if you want to keep your sanity. A 235 or 245 tire width is the sweet spot for a 9.5-inch wheel on this car. You get a slight stretch that helps clear the fender liners while keeping enough meat for grip.

Common mistakes usually involve buying the wrong offset and trying to fix it with cheap spacers. Never run a spacer on a wheel that already has a +10 offset unless you want your wheel bearings to explode. Do it right the first time or do not do it at all.
Before you commit to the purchase, check your suspension travel. If your coilovers are too soft, you will bottom out constantly. Spend the extra cash on a quality alignment shop that knows how to dial in aggressive camber settings.
Style and Build Analysis
The Machined finish on these wheels is the star of the show. It catches the sunlight and makes the wheels pop against the paint. It creates a high-contrast look that keeps the car from looking like a dark, muddy mess.
Those six thick spokes provide the perfect visual weight for the RSX. The car has soft lines, so the sharp, aggressive angles of the Cosmis wheels bring a necessary edge. It bridges the gap between show car beauty and race car utility.
When the car is sitting still, the stance looks perfectly leveled. The proportions feel spot-on for the DC5 platform. It looks like it wants to hunt down apexes rather than just sit in a parking lot.

I have seen a dozen RSX builds, but this one hits differently because of the wheel design. Most people run generic five-spoke wheels, but the XT-206R has more character. It shows that the owner actually cares about the details.
It balances the aggressive offset with a clean, classic finish. You do not need a crazy body kit when your wheel fitment is this dialed. The wheels define the entire identity of this build.
Why We Love This Build
This RSX is the definition of a passion project. The way the light dances across the Machined finish makes the whole car glow under the streetlights. We love how the wheels fill the arches without looking like a toy car.
This build stops us in our tracks because it is unapologetic and raw. It proves that the DC5 still has the legs to compete with modern builds. It makes me want to go buy an RSX just to recreate this exact look.
This is what happens when vision meets execution on a legendary platform. This car is built to be driven hard and admired constantly. Go build something that makes you look back every time you walk away.

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: Acura RSX Type-S 2006
- Vehicle Color:
- Wheel Brand & Model: Cosmis Racing XT-206R
- Wheel Size: 18×9.5 / 18×9.5
- Offset: 10 / 10
- Wheel Finish: Machined
- Tires: Federal SS535 225/35 24.2″x8.9″ / 225/35 24.2″x8.9″
- Suspension: Coilovers
Before You Buy: Fitment Checklist

We talk to Acura RSX Type-S 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 Acura RSX Type-S? 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 Acura RSX Type-S 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.



