SRIs witch to get

[Smokey159]

Originally Posted by marcus

if mpg is increased then mostlikely u lost hp..

Hell, I couldn't help it, here ya go.

A properly designed(*key point) intake that increases airflow will allow the engine to operate at a higher performance level(also assuming the ECU can still manage a good air/fuel ratio). This has been proven time and time again by dynomometers. However, I will say that there is a point in performance gains where it is necessary to add more fuel than normal which leads to a loss in MPG, but this scenario is WELL beyond a simple intake modification.

Again, more power leads to an overall more efficient vehicle, keeping all other things constant, including driving habits. I'm sure you've noticed how much gas can be wasted by just the smallest increase in throttle. See what BailOut wrote about exploiting fuel mapping(which I completely believe) that falls closely with what I'm talking about. Increasing the performance of a 4 stroke engine allows you to ride in fuel mapping areas for lower throttle positions, thus saving fuel.