The Wagner Tuning charge pipe kit for Audi S4 (B9) and S5 (F5) models replaces the factory charge piping with a direct-fit intercooler pipe solution tailored for those applications. It routes boost air between turbo and intercooler and is intended as a reliable upgrade path when replacing or improving the factory charge plumbing on these Audi models.
Wagner Tuning Audi S4 B9/S5 F5 Charge Pipe Kit