Audi A4 B9 S-Line / S4 Rear Diffuser – Prepreg Dry Carbon Fiber (2020–2022 Sedan) Door Locks and everything needed for a

and everything needed for a clean

Enhances rear-end styling and aerodynamic presence

no extra brackets

700HP Capability: Designed to support everything from tuned daily drivers to full big-turbo builds—built to grow with your setup

Fitment Fits 2022-2025 Subaru BRZ All Models

Audi A4 B9 S-Line / S4 Rear Diffuser – Prepreg Dry Carbon Fiber (2020–2022 Sedan) Door Locks and everything needed for aThe rear end of your B9 deserves the same attention as the front. This Prepreg Dry Carbon Fiber Rear Diffuser for the Audi A4 S Line and S4 Sedan delivers aggressive styling with precision fitment, giving your build that refined performance look without going over the top. Designed to enhance the factory rear bumper lines, this diffuser adds depth, sharp edges, and true motorsport inspired presence. Constructed using advanced prepreg dry carbon and