Whats the word on chips for the 6.7?

Some guy was trying to shill us this chip (i forget by whom he said it was made) that would give the 6.7 up to 5mpg better fuel economy. The price was $1000.


I personally called bull on it.
But, then again I really dont know for sure. So I was hoping to get some feedback from ya'll on that.

Any word about any chips would be great

Thanks

 

There is a few out there now, but 1000 bucks seems crazy high to me?
So far i know there is:
TS Performance
EDGE
Bullydog Power Pup
Smarty box is shipping in the next few weeks from what i understand..

Iam sure someone will correct me if iam wrong on any of this and add more products if there is more.. Adding 5mpg could be true but i cant see it, but then again it all depends on how you drive it..