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    Audi A3/S3/RS3 Suspension Control Unit (SCU) Upgrade

    APR's Performance Lineup for Audi A3, S3, and RS3 vehicles.

    The APR Suspension Control Unit (SCU) Upgrade directly replaces your factory suspension controller with a new unit that enables advanced control over your vehicle’s factory electronic shocks. The factory controller only operates in a “soft” or “stiff” state with no behavior in-between, despite the incredible capability of the factory electronic shocks. Our controller has advanced programming that takes various inputs to provide fine-tuned control over the shocks in real time.