About This Subaru WRX STI Base 2004 Build
We love featuring real builds from real owners. This Subaru WRX STI Base 2004 sits on a set of 17×9 / 17×9-inch BBS Rs wheels, and the result speaks for itself.
The owner chose BBS for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Subaru WRX STI Base builds come through WheelFront every month, but this one stands out. The combination of the exterior with the BBS Rs creates a look that balances aggression with elegance.

Fitment Breakdown: BBS Rs on the Subaru WRX STI Base 2004
I walked around this blobeye STI at the meet and immediately lost my breath. Running 17x9 BBS RS wheels with a +15 offset is a bold move on this chassis. That aggressive offset pushes the wheels way out compared to the factory specs. It transforms the stance instantly.
Those 17-inch diameters keep the proportions period-correct for a 2004 build. The 9-inch width fills out the wheel wells perfectly when you drop the car. You definitely need those coilovers to tuck the tops of the tires correctly. Without the right coilover setup, you would be fighting massive poke all day long.
Clearance is the biggest headache with these massive RS faces on an STI. The Brembo calipers on the 2004 model are notoriously tight against flat-back wheels. We checked the barrel clearance and it sits right on the edge of safety. You cannot afford any flex in your hub assembly here.
The +15 offset means the wheel lips sit aggressively proud of the fenders. I noticed the owner rolled the fenders flat to avoid slicing the tire sidewalls. Even with the roll, you have to watch your compression travel on big bumps. A little bit of negative camber goes a long way in tucking that top edge.
The hub bore on these RS wheels requires precision centering rings to stay vibration-free. We always stress this because the Subaru platform is extremely sensitive to wheel balance. If your rings aren't perfect, you will feel the wobble through the steering wheel at highway speeds. Take your time getting that fitment dialed in.
Those deep lips on the BBS RS give the car a massive, muscular presence. The tiered look of the barrel design breaks up the visual weight of the car. It makes the STI look wider and more planted than the factory setup ever could. This is the definition of aggressive fitment.
What We Recommend for Subaru WRX STI Base 2004 Owners
If you want this look, start by sourcing high-quality hardware for your wheels. Never skimp on the bolts or the lips when rebuilding a set of BBS RS. Cheap components will fail under the torque of an STI launch. Stick to reputable suppliers for your step-up kits.
We always suggest a square setup for these cars to keep the handling predictable. Running 17x9 all around gives you the best tire rotation options and balanced grip. Staggered setups on an AWD Subaru are a recipe for drivetrain disaster. Keep the wheel diameter and width identical at all four corners.
Watch your tire choice carefully when running this much offset. A mild stretch helps clear the fender liners during hard cornering. Avoid balloon tires that will rub the plastic trim every time you hit a dip. A 235 or 245 width tire usually provides that perfect balance of meat and clearance.

Do not attempt this fitment without adjustable rear control arms. You need to dial in the rear camber to clear the quarter panels properly. If you rely only on factory adjustments, you will never get the alignment right. Invest in quality suspension arms early in your build process.
The biggest mistake we see is people skipping the professional fender roll. Do not use a baseball bat in your driveway; pay a pro to use a proper heat gun and roller tool. A bad roll will crack your paint and ruin the clean lines of the body. Protect your investment by doing the body work right the first time.
Style and Build Analysis
This custom finish on the BBS RS wheels changes the whole vibe of the car. The metallic tones catch the afternoon light and highlight the intricate mesh spokes. It contrasts beautifully against the factory blue paint of the STI. The craftsmanship looks showroom-ready from every single angle.
The multi-piece design of the RS wheels adds a level of complexity that modern monoblocks just lack. Each bolt represents a commitment to the classic tuner aesthetic. When you see this car rolling slowly, the wheels seem to anchor the entire body. It looks like a rally car that learned to dress up for a night on the town.
Proportions are everything when you are building a Subaru. By sticking to the 17-inch wheel, the car retains its nimble, athletic feel. Oversized 19-inch wheels on this car would look like a cartoon, but these RS wheels look precise. It is a masterclass in selecting the right tool for the job.
The stance sits perfectly level thanks to the coilover tune. The gap between the tire and the fender is consistent all the way around. It looks aggressive without looking broken or unusable. You could drive this car to the track, run a session, and drive home in style.
We have featured plenty of WRX builds, but this one sticks in our minds. Most people settle for generic cast wheels that lose their luster after a season. This owner chose a timeless design and elevated it with custom touches. It proves that you do not need to reinvent the wheel to make a statement.
Why We Love This Build
This STI captures the soul of the early 2000s tuning scene. The way the light dances across those polished custom lips is pure magic. Every time the car shifts weight, the wheels tuck neatly into the arches with surgical precision. It is the kind of build that makes you stop walking just to stare.
We love that the owner kept the classic styling while pushing the fitment boundaries. It feels authentic, purposeful, and undeniably fast even when it is parked. You can tell this car gets driven hard and maintained with absolute obsession.
Seeing a clean 2004 STI on proper BBS RS wheels is a rare treat. It reminds us why we fell in love with these cars in the first place. You need this setup.

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 WRX STI Base 2004
- Vehicle Color:
- Wheel Brand & Model: BBS Rs
- Wheel Size: 17×9 / 17×9
- Offset: 15 / 15
- Wheel Finish: Custom
- Tires: Lionhart Lh-four 215/35 22.9″x8.5″ / 215/35 22.9″x8.5″
- Suspension: Coilovers
Before You Buy: Fitment Checklist

We talk to Subaru WRX STI Base owners every day. These are the questions we hear most before they pull the trigger on new wheels.
Will 17×9 / 17×9-inch wheels fit my Subaru WRX STI Base? 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 WRX STI Base owners run 17×9 / 17×9-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.



