You are better off with the standard OEM paper filter if you want your engine to last. These other filters might flow a little bit better, but they also let more filth into your engine.
From Ford Muscle:
Remember, a filter serves two purposes, to filter out particulates and to let in air. When it comes to filtering efficiency, or the amount of dirt stopped by the filter, paper is in the 98-99% range when new, cotton gauze (K&N) will best around 96%.
Jeez Casper, your on the ball. I hadn't finished composing this opus.
"I married Miss Right. I just didn't know her first name was Always."
Heh . . . in another thread somewhere else (I think maybe e-series) Soxx reckons we don't need air-filters at all (!)
I think that even if we assume the worst (that k&n does 96% vs 99% of a paper), the quantity and size of the particles are going to be pretty inconsequential in terms of engine life - especially when you consider the crap already potentially floating round in there (metal odds and sods from wear).
But likewise to memphis, I have seen some people commending BMC, but until recently have never heard of them . . . Anyone ?
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