Breather Adapter Kit. Eventuri's C8 RS6 / RS7 Carbon Intake System provides on all fronts and allows for the turbos to generate boost more efficiently; however for the 2023+ model years, the Audi C8 chassis used a slightly different PCV connection at the inlet. If you've purchased a used C8 intake system initially purchased prior to 07/2023 and are fitting on a 2023+ model year, this breather vent adapter kit is required. *By request/order.