Originally Posted by swamp2
I am both incredibly surprised (but then again not) that in a thread about hp gains for a particular mod that there is not a single dyno result posted. What I would really like to see is a series of 4 blind tests, back and forth with OEM filter and aftermarket to eliminate the possibility of "noise" in a single measurement of each. I know... don't hold your breath.
Because any HP gains are negligible. But the biggest issue is not how little HP is gained (if at all), but how much more dirt is being allowed in the engine. The engine doesn't need more air than it can use, and the stock filter doesn't seem restrictive at all. For 2 to 3 HP, I would never give up the much better filtering of a paper filter, especially in the desert southwest, but to each his own.