AWE ColdFront Reservoir (B8)4710 11018 The ColdFront Reservoir The AWE Tuning ColdFront Reservoir is CNC Machined from 6061 Billet Aluminum and plumbed directly into the heat exchanger coolant system to increase supercharger coolant capacity. The increase in coolant capacity leads to lower coolant temperatures, in turn supporting lower air intake temperatures. To further reduce coolant temperatures, the AWE Tuning ColdFront Reservoir incorporates a true flow through design which