ait resistor mod

[pigpenracing]

I want to try the mod putting the resistor in the ait sensor. I know this will not give me 35 HP like ebay says but I should pick up 7 or 8 HP. I tow a trailer with 3 dirtbikes with my yaris. It tows pretty good. I can roll 80 MPH no problem in 4th gear. It slows down up hills in 5th gear. I am just looking for a few extra HP without spending money. If I do spend money I will install a turbo. I will not waste money on exhaust, cold air intake etc just topick up a few hp. I know the ait mod works, I have done it on other cars. My question is where is the ait sensor. There is a sensor on the airbox with multiple wires. Is this it? Which 2 wires is it? On other vehicles I have done it is just 2 wires hooked to the sensor. Has anyone done this? I have a 2007 hatchback. Maybe I can just spray a 150 shot of nitrous going up hills. LOL!
Any help would be appreciated