BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz S63 AMG (W221) M156 6.2L V8 (2006-2011) R6 Additional front padding on the

Additional front padding on the arms and chest for enhanced roost protection

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

JT Sprockets are manufactured the right way – by hobbing

mechanical performance

Brake Light: 5

BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz S63 AMG (W221) M156 6.2L V8 (2006-2011) R6 Additional front padding on theBlackBoost 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,