BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz SL550 (R231) M278 4.7 V8 BiTurbo (2012 – 2019) Indian Springfield feel and comfort

feel and comfort

Extended ergonomic stretch insert on palm for flexibility

the optimised neck padding design stands out (allowing for a comfortable fit) as well as the additional padding on the ears

Accordion panel on shoulder and elbow with HRSF polyamide stretch material on the shoulder

BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz SL550 (R231) M278 4.7 V8 BiTurbo (2012 – 2019) Indian Springfield feel and comfortBlackBoost Coolant Wide Open Thermostat for Mercedes Benz SL550 (R231) M278 4. 7 V8 BiTurbo (2012 2019) 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 100C 212F. Only for racing application, not recommended be used under very cold weather conditions. Note : Prior to check out, please click here to confirm product