BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz S63 AMG (W221) M156 6.2L V8 (2006-2011) R6 Wide slide seal for easy

Wide slide seal for easy fill

mechanical performance

Upper constructed from a breathable stretch fabric for high levels of rider comfort and an optimized fit

Multi-Directional Impact Protection System: MIPS: MIPS  is  incorporated  into  the  Supertech  M10  to  reduce  rotational  motion  energies  that  impact  the  helmet  causing  damaging  gyration  force  to  be  transmitted to the brain

Reinforced stitching at all stress points

BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz S63 AMG (W221) M156 6.2L V8 (2006-2011) R6 Wide slide seal for easyBlackBoost Coolant Wide Open Thermostat for Mercedes Benz S63 AMG (W221) M156 6. 2L V8 (2006 2011) 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 availability,