100 HP and 30 MPG Gains

People are obviously buying these things. $22.95. 683 feedback 420 in the last month. I see why he has 1,169 items for sale on Ebay. Suckers. Don't be a sucker, be educated.

"The way our Performance Modules work is by sending a modified signal through a factory sensor in the engine compartment, called the IAT sensor. This signal alters the computer and the computer then reprograms itself for a more efficient air/fuel mixture. Your vehicle from the factory may come too rich or too lean - meaning too much fuel (rich) or not enough fuel (lean). You may see cars and trucks on the road blowing a lot of black smoke out of their exhaust pipes. This means that their motor is running rich and they are throwing money away and wasting all of that gas and hurting the environment as all of that black smoke is raw, unburned fuel."

Too rich or too lean ? So, their module will add fuel, and give you more power and save gas ?

A lot of black smoke ? A lot of black smoke on a catalytic converter equipped car is a sign of some major failures. If your car is blowing a ton of black smoke, its supposed to, or you have some major problems.

"By modifying the air/fuel mixture to a more efficient mixture, you are tapping into hidden performance, and by gaining performance in your vehicle, you do not have to push the gas pedal down as hard to get up to speed, so therefore the fuel savings are enormous!"

Two wires hooked to one sensor will make a "more efficient" mixture? Stoichiometric ratio of gasoline, is the Stoichiometric ratio. You can run some engines lean, but not every engine is happy when its lean. You run into other issues if you run lean.You can get lean misfires. You increase the temperatures of combustion. You increase NOX. You have the potential to hurt catalytic conveters.

Again, if Detroit or Japan could gain 100 hp and get 30 mpg improvements, they would. A $22 device off eBay is not going to help you. Hundreds of people are buying these things. They should be investing in a tire pressure gage. They should invest in a little time planning. Maybe driving a little slower if they actually want to save some gas. Everyone always looking for the cheap and easy way out. Not the way that takes any real work. Such is life. I should be selling these resistors to people for $20 each. I just couldn't live with myself.