2017-2019 Audi A3/S3 — KB Style Rear Diffuser
⚠️ 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.
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.
Original: $301.99
-65%$301.99
$105.70More Images
2017-2019 Audi A3/S3 — KB Style Rear Diffuser
⚠️ 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.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
⚠️ 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.
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.
