HPI GT Speed Controller! E-Savage owners can now add extra cooling for their ESC with the Cooling Fan Set for the GT Speed Controller. This bolt on fan set is easy to install and provides active cooling for the heat sink to keep temperatures at a safe level even in hot climates or during heavy duty driving. The fan plugs right into the front panel of the speed controller and bolts to the heat sink. An included chrome grill prevents objects from being damaged by the fan. This HPI factory option part keeps your GT ESC cool when the going gets tough!