BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz S63(S) AMG (W222/A217/C217) M157 5.5L V8 BiTurbo (2014-2017) Suzuki DR-Z400 The Alloy Jacket is a

The Alloy Jacket is a grid-fleece mid layer with excellent mobility and breathability properties

Warm and breathable moisture wicking complete stretch material

adds to the boot’s overall durability and improves boot’s streamlining

Audio multitasking

with six specific densities that are strategically positioned in different zones to ensure excellent energy absorption from impact forces dissipated over the outer shell

BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz S63(S) AMG (W222/A217/C217) M157 5.5L V8 BiTurbo (2014-2017) Suzuki DR-Z400 The Alloy Jacket is aBlackBoost Coolant Wide Open Thermostat for Mercedes Benz S63(S) AMG (W222 A217 C217) M157 5. 5L V8 BiTurbo (2014 2017) 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