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Edelbrock Cooling System Upgrade Kit (P/N 15804) is required when installing Edelbrock Supercharger systems 1580 or 1585 on 2005–2006 Mustang GTs. The kit relocates the thermostat from the cold side of the radiator to the hot side to improve cooling for forced-induction installations. It includes all necessary hoses, clamps and hardware to complete the coolant routing changes and support more demanding thermal loads.
Edelbrock Coolant Routing Upgrade Kit
