Gadgetman
 

Has anyone heard of it?
Their claims are pretty bold. And they give 1 year warrenty...
Better Mileage with Gadgetman

From his own order page:

"Also remember that I make no promises about mileage."

I've never known anyone who tried one of these types of things for either HP or MPG, I think I would be too scared to try it. Afraid something would happen to the car.

Here's something I picked up from the tesimonials:
Kathy was getting 8-10 mpgs and is now getting 13-19!

That range just seems a little strange to me:confused:

Anyone sincere in gathering genuine test data will only charge for the price of materials. His "donation" fee alone is ridiculous, but the fact that I wasted 10 minutes of my day was even more so. Give me $250 a TB and I'll hog out as many as you want, and spit shine them afterwards.

He improved the ICE's efficiency by 200-300% just by messing with the TB. Imagine what he could do if he had a belly pan.

*facepalm

Anything that claims to increase engine efficiency by such a high amount should immediately be considered highly suspect.

I wonder if his throttle body modification works for diesel engines?

I am skeptical too. But the concept is similar to Somender's Grooves that many people seem to be successful with.
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I smell snake oil....

I can taste it.