KYOSTAR Aluminum Skid Plate Engine Shield for 2018+ Audi B9 B9.5 A4 A5 S4 S5 Upgrade the underbody protection of your compatible Audi with the KYOSTAR Aluminum Skid Plate Engine Shield. Designed for listed 2018+ Audi B9 and B9.5 A4, A4 Allroad, A5, S4, and S5 applications, this vehicle-specific protective panel provides an additional physical barrier around the lower engine and underbody area. The skid plate features aluminum construction with a large vehicle-specific panel