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

$345.99 USD

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⚠️ Important Fitment — Please Read: This diffuser fits Audi A3 S-line trim or S3 performance model only. Base/standard A3 models without the S-line rear bumper are not compatible. Please confirm your trim level before ordering.

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 Sedan and Hatchback (Sportback) body styles. Fits S-line trim or S3 only — not compatible with standard A3 rear bumper.

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

🕒 Made to Order — 3-4 Weeks from Production to Delivery

This rear diffuser is custom-manufactured to order in our production workshop. Production begins 24 hours after your order is placed — you have a 24-hour window to modify or cancel. Once production begins, orders cannot be modified or cancelled. Typical timeline: 3-4 weeks from production start to delivery at your door. You'll receive a tracking number as soon as your diffuser ships.