Kuhl Rennsport is proud to introduce the Audi B6/B7 S4 Carbon Fiber side skirts. These are made from our highest quality Aerospace Carbon Products and epoxy. They will not yellow or crack over time due to the high quality epoxy used in the process. They are completely customizable when it comes to weave type and design, also there are many different color options! The visuals are outstanding and complete the exterior look of the S4.