[BP-Revo]

In my opinion, if you want airflow, increase surface area (of the filter).

You can only properly filter something so fast, so if you are getting a dramatic increase in airflow from the same amount of surface area, chances are you are letting more than extra air through.

As mentioned before, even more important with force induction vehicles. The stock filter on my brother's Evo 8 is much much larger than the stock filter was on my G35 (given, I have an aftermarket cool air intake now, but thats a different topic).


If you want more airflow for your engine, just use a 1/8 buggy filter. They are enough for .28 sized big blocks, they will be plenty for anything smaller.