I guess we'll never know until someone buys one these and writes a review on it. Surprised that most of you are quick to say that it wouldn't work without testing.
Mine is on its way. I'll let you all know if it doesn't work.

 

You'll save more fuel by removing the spare tire and jack than by buying this joke

 

I would be more interested in a start/stop mod for sitting in traffic...

 

Cool. Please give us a review. I'd ask that you take detailed accurate information about your fuel economy for at least a week before installing this and getting results. Actual MPG based strictly on actual miles driven/amount of fuel consumed. Going by the onboard computer or how many fill ups you used to do over a weeks time vs how many you do now won't tell anything because there are too many variables. Also let us know how you car drives.

 

The technology exists and it is proven as others have said. I've seen it advertised in high-end, high performance cars (can't remember which cars and too lazy to look up) when you switch to an Economy mode setting, BUT.... these systems are integrated straight from the factory and engineered from the ground up during the initial design phase of the cars. I would never put some third party device in my car that emulated this type of function. It may work for some people but statistical variance is a b*tch and I would never chance it personally.

 

in for updates.. sounds interesting but i doubt it works at all...