This anodized aluminum flow restrictor mounts under the water outlet on the intake manifold (where the thermostat is normally placed). It is designed to produce much less turbulence in the water flow and improve cooling. Set contains three plates with 5/8", 3/4", and 1" ID holes for optimum coolant flow. Restrictors are 2 1/8" outside diameter.
Prices, specifications, and images are subject to change without notice. Some images are only a representation and might not be the actual product. We are not responsible for typographical errors. Manufacturer rebates, terms, conditions, and expiration dates are subject to manufacturers printed forms.