BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz CLK63 AMG Black Series (C209) M156 6.2L V8 (2007-2009)

Racing Coolant Thermostat.

With BlackBoost Racing Coolant Thermostat the coolant circulation with the radiator is always at 100% open. The factory coolant thermostat opens at 100°C / 212°F.

Only for racing application, not recommended be used under very cold weather conditions.

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