Audi A3 vs Audi RS3 Widebody Kit Comparison

Choosing between an Audi A3 vs Audi RS3 Widebody Kit Comparison often comes down to how aggressive a stance you want and how much your fenders can realistically accommodate. Both the A3 and RS3 share the same 8V platform, but their factory arch widths, power output, and intended use create very different starting points for a widebody build. At XUKLTD, we manufacture in-house wide body kits for both models, so we see this decision play out with builders across the UK and internationally almost every week.

Factory Fitment Differences

• The standard Audi A3 runs narrower factory arches, designed for daily-driving comfort rather than aggressive track fitment.
• The Audi RS3 already comes with wider quattro-based arches from the factory, giving it a natural head start for a widebody conversion.
• This means an A3 widebody kit typically requires more material to achieve the same visual flare as an RS3 kit.

Styling and Stance Goals

If your goal is a show car stance, the A3 widebody route lets you push the design further since you’re building from a narrower base — ideal for static builds or air suspension setups looking for maximum poke. The RS3, on the other hand, suits builders wanting a more subtle, OEM+ aggressive look without excessive flaring.

Material and Build Quality

Our FRP (fiber-reinforced plastic) wide body kits are built for precise, vehicle-specific fitment rather than generic bolt-on flares. Whether you’re upgrading an A3 or RS3, XUKLTD’s kits are:

• Manufactured in-house in the UK for consistent quality control
• Designed for both street style and track style builds
• Compatible with forged wheels for a complete widebody stance
• Suitable for pairing with air ride suspension for show-ready builds

Which Should You Choose?

For most A3 owners chasing a dramatic widebody look, expect a larger, more custom-built kit. RS3 owners generally need less material to hit the same aggressive stance since the factory arches are already wider. Either way, XUKLTD’s Audi A3 S3 RS3 wide body kits are engineered specifically for the 8V chassis, ensuring a precise, factory-like fit.