*Please email us any special requests*

Upgrade the rear end of your B9.5 Audi S4 with our Carbon Fiber KB Style Rear Diffuser - complete with integrated LED brake light for added flair and function.

Engineered for a snug OEM-like fit on 2020-2025 S4 models, this diffuser is crafted from high-quality carbon fiber with a high-gloss finish that delivers both aggressive styling and lightweight performance. The LED brake light enhances visibility while giving your S4 a premium, motorsport-inspired look.

We have been working months to get the best Carbon Fiber Rear Diffusers from our supplier. Don't waste $1500+ and save today with ours! This Rear Diffuser will fit the 2020-2024 B9.5 Audi S4.

Specs

• Fits: 2020 2021 2022 2023 2024 2025 B9 Audi  | S4 | (Does not fit A4 Non S Line OR A4 S Line)
• Material: Real Carbon Fiber
• Carbon Fiber: 2x2 Carbon Fiber Weave
• Glossy UV Protectant Clear Coat
• Professional Installation Required (Bolts & 3M Tape Included)

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.