HKS Premium Suction Kit für Subaru Impreza GR/GV

Airflow meter does not show fluctuation with or without Premium Suction. (See the graph on the left.) However, the intake resistance is reduced when Premium Suction is installed. (See the red line on the graph on the right.) Unique design of the pipe connected to the turbine and aluminum suction pipes can reduce the intake resistance. Experience the improved engine response when accelerating for overtaking.