NOTE: Due to high demand, the delivery time is currently 1-2 weeks. ST Trackparts AeroDiscs are expertly engineered for track applications to optimize aerodynamic efficiency by enhancing airflow around the rear wheels and significantly reducing drag. Each disc is precisely machined from durable ABS material, while the mounting brackets are constructed from carbon-reinforced plastic, ensuring exceptional heat resistance during intense track conditions. The combined weight of each disc, mounting bracket, and accompanying hardware is approximately 450 grams, balancing performance with lightweight design. These AeroDiscs offer a fully plug-and-play installation experience, including all necessary hardware and protective PPF stickers to safeguard your wheels from damage. Compatible with the following wheels: BBS E88 (all sizes) Package includes: 2 x AeroDiscs 2 x Mounting Brackets Complete Mounting Hardware Note: The AeroDiscs are specifically designed for rear axle use only.