Ok i know it looks like more snake oil. but i know for a fact that it works. my brother was getting 14MPG in his SS silverado. he put one on and now at the same speed he is getting 18-19MPG. and he has ran about 5 tanks of gas so its not just a fluke.
My ? is anyone on here have one on there car? im thinking about getting one for my SS but wanted to know if any of you have used it. thanks

 

here is the link. sorry i forgot . http://www.fitchfuelcatalyst.com/pro...uto/index.html

 

I think that is on of the things that Popular Mechanics has out right proven to do nothing but waste your money.