Seller notes

797 Performance Coolant Restrictor Kit All 5.7, 6.1, 6.2, 6.4, Hemi's Including Hellcat Restricting coolant flow leaving the engine lets you control the amount of heat absorbed by the coolant. Simply removing a thermostat causes the hot coolant to move so fast and the radiator does not have enough time to allow for adequate cooling. 6061-T6 Aluminum restrictor plates are mounted under the water outlet and sealed with an OEM-style gasket. Integrated Air Bleed hole to allow trapped air to be relea...

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