About This Audi S4 B8 Build
We love featuring real builds from real owners. This Grey Audi S4 B8 sits on a set of 19×9.5-inch BC Forged BS01 wheels, and the result speaks for itself.
The owner chose BC Forged for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Audi S4 builds come through WheelFront every month, but this one stands out. The combination of the Grey exterior with the BC Forged BS01 creates a look that balances aggression with elegance.

Fitment Breakdown: BC Forged BS01 on the Audi S4 B8
I walked around this B8 S4 for twenty minutes just to soak in the stance. Running 19x9.5 BC Forged BS01 wheels on this platform is a bold move that pays off. The 19-inch diameter strikes the perfect balance between modern aesthetics and usable sidewall for our local roads.
These wheels feature a ET40 offset which sits right at the edge of the fender. You get that aggressive flush look without needing to pull the metal out. It transforms the factory profile into something much more purposeful.
Caliper clearance is always the big worry with the B8 chassis. These BS01 spokes curve outward just enough to clear the large front brakes. We didn't need any spacers to make the hardware fit.
The hub bore sits perfectly flush against the factory Audi hubs. This prevents those annoying vibrations you get with cheap hub rings. Everything locks into place with solid, factory-like precision.
I looked closely at the barrel depth and it is substantial. The design offers enough room for the brakes while maintaining a clean, deep-dish aesthetic. It is a tight fit, but it clears the knuckles perfectly.
The owner lowered the car on coilovers, which tightens up the fender gap significantly. Because the 235/35/19 tires offer a slight stretch, there is zero rubbing under load. The clearance is just enough to keep the paint safe during hard cornering.

Watch your front fender liners if you plan to go lower than this. The B8 platform gets grumpy if you push the offset too far toward the outside. This ET40 setup is the absolute limit for a daily driver that actually sees spirited miles.
What We Recommend for Audi S4 B8 Owners
If you own a B8, stop looking for heavy cast wheels. We always push for forged options because the unsprung weight savings change how the car handles. BC Forged gives you high-end quality without the ridiculous wait times of boutique brands.
Stick to a square setup if you value tire longevity. Running the same width on all four corners allows for proper rotations. It keeps the Quattro system happy and saves you money in the long run.
Aim for an offset between ET35 and ET42 for the best results. Anything lower than ET35 will poke too much and ruin your paint with road debris. We have tested many setups and ET40 remains the sweet spot for a flush look.
The 235/35/19 tire choice is aggressive but fits the aesthetic. If you prefer a beefier look, move up to a 245 or 255 width. Just be ready to roll your fenders if you decide to go wider on a lowered car.
Avoid cheap spacers at all costs. If you buy a wheel with the correct offset from the start, you never need to compromise your suspension geometry. Do it right once and enjoy the drive instead of fixing alignment issues.

Style and Build Analysis
The Metallic Bronze finish against the Grey paint is a masterclass in color theory. It provides a warm contrast that makes the neutral factory grey pop. The wheels don't just sit on the car; they dictate the entire mood of the build.
The BS01 design is elegant and timeless. The multi-spoke pattern adds a layer of complexity that draws the eye toward the center cap. It looks fast even when the car sits parked in the lot.
Proportions define a good build, and these 19-inch rollers fill the wheel arches perfectly. There is no awkward gap, and the wheel diameter doesn't overwhelm the body lines of the B8. It looks like a factory-upgraded sport model, only better.
I have seen dozens of B8 S4 builds, but this one feels cohesive. Many owners go for black wheels, which usually hide the design details in the shadows. This bronze finish keeps the details visible and adds a custom flair that stands out in a crowd.
The stance is low, mean, and functional. It screams performance without relying on tacky body kits or oversized wings. This is a clean build for someone who values quality parts over flash.
Why We Love This Build
Seeing this Grey S4 in the morning light is an experience. The Metallic Bronze finish glows with a deep, rich luster that makes the entire car feel expensive. Every time the sun hits the spokes, you see the craftsmanship that BC Forged pours into their wheels.
The stance is locked in, with the tires tucked just enough to suggest serious speed. It captures the essence of what an Audi build should be: refined, aggressive, and undeniably cool. You can't help but stop and stare when this thing rolls by.
We love this build because it proves that simple, high-quality choices produce the best results. It makes me want to run back to the garage and start working on my own project. Grab a set of these and transform your daily driver into a showstopper.

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 S4 B8
- Vehicle Color: Grey
- Wheel Brand & Model: BC Forged BS01
- Wheel Size: 19×9.5
- Offset: ET40
- Wheel Finish: Metallic Bronze
- Tires: 235/35/19
Before You Buy: Fitment Checklist

We talk to Audi S4 owners every day. These are the questions we hear most before they pull the trigger on new wheels.
Will 19×9.5-inch wheels fit my Audi S4? 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 S4 owners run 19×9.5-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.



