The mountune high flow induction hose for the Focus RS replaces the original OE flexible coupling hose between the air box and intake pipe. Designed with a smooth flow interior, the mountune High Flow Induction Hose enhances airflow to the engine and improves response. The mountune high flow induction hose features multi-layer reinforced sections to prevent deformation under high engine load. The compound curve design ensures perfect fit and is compatible with the mountune Low Restriction Intake as well as the original intake system.