2017-2019 Audi A3/S3 — KB Style Rear Diffuser

Upgrade the rear of your 2017-2019 Audi A3 / S3 with this KB Style Rear Diffuser. Crafted from high-quality ABS plastic and primer-ready, this aggressive rear diffuser adds a motorsport-inspired look and enhances the rear fascia with a sporty, structured finish.

What's Included:

• KB Style Rear Diffuser (primer-ready or carbon hydrodip)
• Mounting hardware & hardware kit

Key Features:

• Material: High-quality ABS plastic — primer-ready, paint to match or custom finish
• Designed for 2017-2019 Audi A3 / S3 using factory mounting points; may require fitment and trimming adjustments based on vehicle trim options — professional installation recommended
• Bolt-on installation — no cutting of the factory bumper required for standard fitment

Fitment: 2017-2019 Audi A3 / S3 — 8V facelift. Available for both Sedan and Hatchback (Sportback) body styles. Fits models with factory S-line or standard rear bumper.

The Carbon Fiber variant features a premium hydrographic carbon fiber finish (hydrodipped), pre-applied over ABS plastic — no painting required.

Production & Lead Time: These rear diffusers are custom-manufactured to order. Please allow 1–2 weeks for production before your order ships. Orders cannot be modified or cancelled once production has begun.