it was a noticable gain? as in on a dyno or on the road driving?

cold air intakes, the way it works is as we all being high school students or grads know, the higher the temp of a gas, the more room it takes up, so you get more air in a fixed space like a cylinder when its cold then when its hot. however, more air means you need to put in more gas to keep the air/fuel ratio where it needs to be for most efficient combustion.... of course on this low of a level ( as opposed to a turbo which would be higher and much more sensative to air temp differences), i doubt it will be a noticable difference in fuel milage, unless its a noticable increase in power,
remember, the more horses you have on the farm, the more expensive it is to feed them all.


as for moving around the torque curve, i heard that exhaust headers has a little to do with that aswell. though i forget exactly what change move power to where.....