HOW MUCH COULD YOUR
GAS MILEAGE INCREASE
WITH 15% MORE HORSEPOWER?

 
> If your engine had 15 % more horsepower it would take less throttle to get it up to speed, thus using less fuel.

For Example: I had a 454 Crewcab truck that I hauled a trailer with. It got 6 MPG hauling. After I installed free flowing mufflers and a good full length header, the MPG went up to 9MPG. That's a 50% increase in mileage. I now have a truck with a 4.8 LS V8, and after installing a free flowing muffler and S&S Headers, I average 20MPG going to and from work.

Will your truck do this?