*Please email us any special requests*

Transform the rear end of your 2017-2020 Audi S3 with our KB Style Carbon Fiber Rear Diffuser. Designed specifically for the 8V.5 A3 S Line and S3, this diffuser delivers an aggressive, motorsport-inspired look while maintaining OEM-level fitment.

Crafted from premium carbon fiber, it’s lightweight, durable, and built to handle daily driving or spirited weekends. The KB style adds sharper lines and deeper fins, giving your Audi a bold, track-ready finish that turns heads.

We have been working months to get the best Carbon Fiber Diffusers from our supplier. Don't waste $700-800 and save today with ours! 

Specs

• Fits: 2017 2018 2019 2020 8V.5 Audi | A3 S Line  | S3 | (Does not fit A3 Non S Line)
• Material: Real Carbon Fiber
• Carbon Fiber: 2x2 Carbon Fiber Weave
• Glossy UV Protectant Clear Coat
• Professional Installation Required (Bolts & 3M Tape Included)
• All Diffusers are ONLY made with Quad Exhaust cut out

Shipping

• FREE SHIPPING
• 5-8 Days Depending on Location
• We ship all of our products through UPS
• Orders will ship within 1-2 business days after payment is received. Orders from Saturdays, Sundays, or holidays will process on the next business day and will be shipped within 24 hours

 

We always recommend Professional Installation.