alpha Racing Clamp Kit for rubber connectors at the throttle body for BMW S1000RR/HP4, 4 pieces. Factory BMW OEM clamps when re-installed damage the rubber boot connectors and cause unmetered air enter the engine through tears in the boot connectors. We recommend using this alpha Racing Clamp Kit with the alpha Racing Short RACE Intake Funnel Kits or for when ever you plan do perform a scheduled service or engine rebuild.