By the way, one of the English magazines (REVS) did a shootout of over 30 replacement air filters. Comparing cost, filtration and max flow on a meter
The K&N won hands down, most foam filters actually decreased air flow. Only filters that flowed more than K&N were wire mesh types
Unfortunately the air filters available here in England are not the same as those in the US (apart from K&N) so these results may not apply to KKM (KMM?) and the other US filters as I've never seen them.
One things I will state is that the air filter is not the restriction on our intakes, its the Intake manifold and the turbulence that hinders the flow.
Mad Mole
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Mad Moles Mondeo Madness 2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc.
192 BHP, Faster than a speeding Duratec!