Don't have a dyno tuning center nearby? Want to have the perfect tune every time you race? The AutoTune kit monitors the fuel mixture (by installing the included Wide Band O2 sensor in the exhaust). It then sends this information to the connected Power Commander V and automatically corrects the map while you race. Each AutoTune system sold by Hyper Racing has been preset by our technicians to proper Air/Fuel ratio values for methanol burning engines by make. This lets you simply plug in the unit and let it do the work. You will need to weld in an oxygen sensor bung (included). Our AutoTune units are set up by Hyper Racing to only start tuning once the engine has reached the proper water temperature; this eliminates false reads by the sensor. For advanced users that would like to change the Air/Fuel ratio settings from our baseline, they are fully adjustable. Each throttle opening/rpm combination is individually adjustable. The amount the system can change the map is also fully adjustable. You can also view the changes that Auto Tune is making, then accept the changes to modify the base map, from there AutoTune will continue to make changes.