Jason Underwood wrote on Friday, August 31, 2007 - 09:57 am:Actually in a test done by autosalon magazine on a wide range of filters, the Apexi unit came in at 7th for flow and 6th for filtration, out of ten filters tested. The K&N filter came in at first for filtration and 4th for flow.
I read an article in HPI where they rated the Apexi unit head and shoulders ahead of it's competitors. Doesn't matter, I have HKS which is rated best in flow and worst in filtration (Learned this after purcahse) and my engine hasn't blown up yet.