About This Audi S5 B9 Build
We love featuring real builds from real owners. This Grey Audi S5 B9 sits on a set of 20×9-inch HRE FF01 wheels, and the result speaks for itself.
The owner chose HRE for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Audi S5 builds come through WheelFront every month, but this one stands out. The combination of the Grey exterior with the HRE FF01 creates a look that balances aggression with elegance.
Fitment Breakdown: HRE FF01 on the Audi S5 B9
I walked around this B9 S5 for an hour at the show, and the HRE FF01 setup is absolute perfection. Running a 20x9 with an ET25 offset hits that sweet spot for the B9 chassis. It pushes the wheels out just enough to kill that sunken stock look without ruining your scrub radius.
The flow-formed tech keeps these wheels light without the astronomical price tag of a fully forged set. You get that signature HRE quality and the strength needed for rough city streets. The 255/35/20 tires wrap the rim tight and give you a clean, performance-oriented sidewall look.
Clearance is a massive deal with the S5’s oversized front brake calipers. Thankfully, the FF01 spoke design curves outward aggressively to clear those big rotors with room to spare. You won't need ugly spacers to make these fit correctly.
The 66.6mm center bore is a perfect fit for the B9 hub, so you get a true hub-centric mount. This eliminates those annoying high-speed vibrations that plague cheap aftermarket wheels. Everything bolts up tight and runs smooth as glass.
Regarding the fender gap, the Eibach Pro-Kit springs bring the car down just enough to tuck the top of the tire under the arch. It isn't a slammed show-car look, but it is a functional, track-ready stance. You get better handling without scraping your front lip on every single driveway.
You shouldn't face any rubbing issues with this specific setup. The ET25 offset keeps the tire edge tucked inside the fender liner even under heavy compression. It is a true plug-and-play setup for the B9 platform.
What We Recommend for Audi S5 B9 Owners
If you want to upgrade your S5, don't go wider than a 10-inch wheel. Anything beyond that usually forces you into aggressive offsets that kill your steering feel and ruin your wheel bearings. Stick to a 9 or 9.5-inch width for the best balance of looks and performance.
For offsets, keep your target between ET25 and ET30 on a 9-inch wide wheel. This range keeps the scrub radius close to factory specs while giving you that flush-to-fender aesthetic. Avoid anything lower than ET20 unless you plan on pulling your fenders or running crazy amounts of negative camber.
I always suggest running a square setup on the B9 S5. It makes rotating your tires so much easier and keeps the Quattro system happy. Staggered setups look aggressive, but they are a nightmare for tire wear and differential health on these cars.
Watch your tire choice carefully when choosing your rim size. A 255/35/20 tire is the gold standard for a 20-inch wheel on this car. It provides enough sidewall to protect your rims from potholes while maintaining sharp turn-in response.
The biggest mistake I see owners make is buying heavy cast wheels just for the look. Your S5 has a sophisticated suspension system that deserves a lightweight, high-quality wheel like the HRE FF01. Don't cheap out on unsprung weight, because you will feel the difference every time you hit the gas.
Style and Build Analysis
The Liquid Silver finish on these HREs is a masterclass in subtlety. It offers a bright, metallic contrast against the muted Grey paint of the S5. The silver pops in direct sunlight, catching the eye and forcing you to notice the intricate spoke pattern.
The FF01 design uses a classic mesh look that never goes out of style. It feels timeless, almost like a modern take on the vintage racing wheels we all grew up loving. It adds a layer of sophistication to the aggressive B9 body lines.
Proportion is the secret sauce here. Because the wheels fill the arches so well, the car looks planted and purposeful. The 20-inch diameter works perfectly with the long, flowing profile of the S5 coupe.
I have seen hundreds of S5 builds, but this one stands out because it doesn't try too hard. It avoids the neon colors and massive wings that clutter up so many other builds. It is clean, sharp, and undeniably premium.
The way the light hits the concave spokes while the car is moving is mesmerizing. It gives the S5 a sense of forward motion even when it is sitting perfectly still in a parking lot. This is what a well-modded Audi should look like.
Why We Love This Build
This B9 S5 captures the essence of a perfect daily driver. The Grey paint looks stealthy and professional, but those Liquid Silver HRE wheels inject a necessary dose of sportiness into the mix. Every time I see this car, I am reminded that you do not need to over-modify a chassis to make it look world-class.
The Eibach springs provide the ideal drop, eliminating that unsightly wheel gap without compromising comfort. It looks fast, it sounds fast, and it holds the road with total confidence. This build makes me want to go out and buy an S5 just so I can replicate the exact setup.
This is the gold standard for Audi modification. It is clean, functional, and impossible to ignore. Go get yourself a set.
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: Audi S5 B9
- Vehicle Color: Grey
- Wheel Brand & Model: HRE FF01
- Wheel Size: 20×9
- Offset: ET25
- Wheel Finish: Liquid Silver
- Tires: 255/35/20
- Suspension: Eibach PK springs
Before You Buy: Fitment Checklist
We talk to Audi S5 owners every day. These are the questions we hear most before they pull the trigger on new wheels.
Will 20×9-inch wheels fit my Audi S5? 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 Audi S5 owners run 20×9-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.
