For customers that want full control over their intercooler fan and when it is activated, our override switch is the answer. 100% plug and play kit seamlessly connects into the intercooler fan harness and allows the switch to control the fan. When the switch is turned on, the fan will run all the time. When switch is off, the OEM ECU controls the intercooler fan based on the ECU settings like stock. This comes as a complete wiring kit with relay, on/off switch, 30-Amp fuse and +/- leads to connect to the battery.