Bikeman Silicone Intake (Throttle Body to Airbox/Inlet to Airbox) / PRO RSKU: 16 320 This intake tube is a major durability fix for the Polaris ProR. The stock tubes collapse under heavy load and could choke out the air to your motor when you need it most. Made from High quality 6 Ply silicone. We also expanded the size of the tube everywhere we could to maximize air coming in. First Tube connects the airbox to the throttle body, second connects airbox to throttle body. Fitment: Polaris RZR Pro R CB 1 15 25