[aerohead]

Originally Posted by HydroJim

I'm not saying that the gains suspectnumber961 is experiencing are accurate, but I feel that the rest of you guys are too quick to turn it down. I understand the need for accurate testing and I want it too.

The factory air intake set up on a ford Focus is very long, winding, and restrictive.

a short-ram intake like the one installed in this case may actually be producing a gain on this particular car. I'm not saying it's the filter itself, I'm just saying that on this particular car, this mod seems to help. Countless people swear by MPG gains from air filters like this in focus based forums, so there may be something to it.

t-vago- The ford focus uses a MAF sensor so warm air intakes have no affect.

Again, I'm in no way endorsing or refuting the gains, I'm just trying to find an explanation

It would be very helpful for someone to install pressure taps along the entire inlet tract,feeding a bank of Magnehelics or manometers,and photograph a pressure histogram under real road load conditions for which to compare before and after.