2017 - 2024 Audi RS4 B9 BKSS Style Rear Diffuser with Winglets

Elevate the rear design of your Audi RS4 B9 with the BKSS Style Rear Diffuser and Winglets combo. Crafted from CFRP, FGCF, and DryCF, this diffuser set adds bold, race-inspired styling while enhancing aerodynamic performance. Integrated LED lighting adds a modern touch, and the rear winglets complete the aggressive look. Perfectly engineered for 2017–2024 Audi RS4 B9 models, this set fits precisely and installs cleanly, transforming your rear bumper with a dynamic performance edge. Fitment: 2017-2024 Audi RS4 B9Package Content: One rear diffuser with LED light, One pair of rear winglets Made To Order Shipping Information Made-to-Order Items: If a material option shows "MADE TO ORDER", it means that specific option is currently out of stock and will be produced upon order. Customers can choose from the following shipping methods: * Standard Shipping And Handling (no extra cost) with an ETA of 3-4 months. * Expedited Shipping And Handling (additional cost: $550) with an ETA of 5-6 weeks.