[jaybratt]

The resistor mod means you go to radioshack and buy a 2.2k ohm resistor. The guys there will know what it is. You unplug your AIT sensor from your intake. It will have two wires running to it. Then you plug each end of the resistor into the harness making sure it touches the metal. It can give some more hp sometimes. I would recommend it only for racing, not for long term as it can bring the gas mileage down sometimes. Depends on how you drive. If you go on ebay and see the $7-$28 speedchips, this is what it is. A .20 cent resistor. Give it a try but only use it if you need power...if it gives you any.