Audi A4/S4/RS4 Charge Air Hoses And Pipes

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    Audi A4/S4/RS4 Charge Air Hoses And Pipes

    APR's Performance Lineup for Audi A4, S4, and RS4 vehicles.

    Upgraded charge piping can offer better flow, stronger leak protection, and eliminate sound mufflers for a cleaner and more direct airflow path.