Agreed. Dont waste you time or money. Its a 10 cent resistor that tricks your IAT sensor into reading a false signal. No power gains will be made, seriously they suck and cause your mixture to be off.
only way it would work is to make the sensor read below zero degrees , then the computer is told to add usually 30 plus degrees of timing which could run into severe pinging .........
LOL...one of my old buddies did this to his Accord and swore he felt 10-20 HP. I told him there was no way possible, and if it did do anything it was only harming the engine by giving it false signals. He didnt want to believe me.
Spend the money right the first time, go with Sniper Tunning, Diablo, SCT.... all great products dont settle for some cheap item that will give you "great results" BS !!!!