Porsche 911 GT3 991 with 20×9 and 20×12-inch Strasse SV2 Deep Concave Wheel

About This Porsche 911 GT3 991 Build

We love featuring real builds from real owners. This Red Porsche 911 GT3 991 sits on a set of 20×9 and 20×12-inch Strasse SV2 Deep Concave wheels, and the result speaks for itself.

The owner chose Strasse for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Porsche 911 GT3 builds come through WheelFront every month, but this one stands out. The combination of the Red exterior with the Strasse SV2 Deep Concave creates a look that balances aggression with elegance.

Fitment Breakdown: Strasse SV2 Deep Concave on the Porsche 911 GT3 991

I walked around this 991 GT3 for twenty minutes just staring at the wheels. The Strasse SV2 Deep Concave setup in 20x9 up front and 20x12 in the rear transforms the entire silhouette. We measure these fitments to the millimeter to ensure they clear those massive steel brakes without drama.

That 20x12 rear width is the absolute limit for the 991 chassis. We see many guys push the offset too far, but Strasse nailed the backspacing here to keep the tires flush with the fender arch. The hub bore matches the Porsche factory spec perfectly, so you get zero vibration at high speed.

The deep concave profile on the rear wheel creates a wicked shadow effect. You get a massive barrel lip depth that makes the car look planted and aggressive. It’s a functional look that actually helps with brake cooling too.

The front 20x9 setup gives the car a sharp, precise turn-in feel. We checked the clearance against the front inner fender liners at full steering lock. Everything clears with just enough room to spare during hard cornering.

Don't ignore the suspension height when running these specs. This car sits on a dialed-in coilover setup that drops the center of gravity just enough. It eliminates the factory wheel gap without forcing you to scrape every driveway in town.

Watch out for the rear inner liner near the front of the wheel well if you go any wider. We’ve seen aggressive tires rub there under full compression on uneven tracks. This specific build stays safe by keeping the tire shoulder profile slightly rounded.

These wheels look like they belong on the car from the factory assembly line. The spoke design provides plenty of airflow to those hot calipers. It is the perfect marriage of form and high-speed function.

What We Recommend for Porsche 911 GT3 991 Owners

If you want this look, stick to the 20-inch diameter. Going up to 21s often ruins the ride quality and handling balance of the GT3 platform. Keep the rolling diameter close to stock to avoid confusing the traction control sensors.

For the offsets, stay within our tested "sweet spot" range to keep the steering feedback crisp. Pushing the offset out too far adds scrub radius and makes the steering feel heavy and vague. We always suggest a staggered setup for the GT3 to maintain the rear-biased handling.

Don't bother with spacers if you buy custom wheels like these Strasse SV2s. A custom-built wheel arrives with the exact offset you need for your specific stance. Spacers just add unnecessary weight to your unsprung mass.

Match your tires to your driving style, not just the look. A wide 325-width rear tire is standard for the 12-inch rim, but choose a compound that matches your track habit. Sticky rubber makes all the difference when you are pushing this car hard.

One common mistake is going too skinny on the front rim width. You need that 9-inch front width to properly support the front tire's sidewall under lateral load. Never sacrifice structural integrity just to get a specific look.

Style and Build Analysis

The choice of Gloss Black against the Guards Red paint is a classic, high-contrast move. It makes the red pop like a supercar should while giving the car a sinister, dark edge. The wheels disappear into the wheel wells in low light and scream for attention in the sun.

Strasse designed the SV2 with these complex, multi-spoke lines that draw your eye toward the center cap. The deep concave drop is the real showstopper here. It gives the car an incredibly wide, predatory stance that screams at you from across the parking lot.

Proportions are everything on a 911. We think these wheels fill the arches exactly the way Porsche intended. The visual weight feels balanced between the front and rear, which is hard to achieve on this chassis.

We see a lot of builds, but this one feels cohesive and intentional. Many owners throw random parts at their cars, but this GT3 looks like a complete, well-thought-out project. It has the presence of a track weapon that you can still drive to dinner.

Compared to other 991 builds we have featured, this one stands out for its restraint. It doesn't need huge wings or crazy body kits to look fast. The wheel fitment does all the heavy lifting for the aesthetic.

Why We Love This Build

This car is pure automotive art in motion. Watching that vibrant red paint catch the morning light while the Gloss Black wheels spin is a highlight of my week. Every time I see this GT3, I find a new detail to obsess over.

The way the wheels tuck just inside the fenders tells me the owner respects the engineering of the Porsche chassis. It is not just a show queen; it is a driver's car built to perform on the street and the circuit. The stance is absolutely perfect.

You can see the passion in every bolt and every tire choice. It makes me want to pull my own car into the shop and start a new build immediately. This is exactly how you modify a legendary machine. Get the fitment right, and the car takes care of the rest.

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: Porsche 911 GT3 991
  • Vehicle Color: Red
  • Wheel Brand & Model: Strasse SV2 Deep Concave
  • Wheel Size: 20×9 and 20×12
  • Offset: Contact dealer
  • Wheel Finish: Gloss Black

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 Porsche 911 GT3.

We talk to Porsche 911 GT3 owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 20×9 and 20×12-inch wheels fit my Porsche 911 GT3? 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 Porsche 911 GT3 owners run 20×9 and 20×12-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Porsche 911 GT3991 with 20×9 and 20×12-inch Strasse SV2 Deep Concave Wheel Gallery

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