AmsOil EA Air Filters
I have them on my Injen SRI. Not sure how much dirt it lets through, but it probably works as well as, or perhaps better than, the OEM drop-ins - most dry element filters work pretty well. I'm sure it works better than K&N, at least i'm not seeing holes. 
They are very good filters. Flow and filter well. But Dave B just posted his concerns about how well they flow after they get some miles on them. He said despite his best efforts to clean them, he thinks it still gets clogged over time.
I think I'm going to just keep using my K&N or just go back to paper filters.
I think I'm going to just keep using my K&N or just go back to paper filters.
Supposedly, the Ea filters can be cleaned, but Dave has a point about cleaning... unlike the K&N it's not really cleaned per se, but rather dusted, so to speak. Got to admit, that is one thing i missed about my K&N's.
Joined: Jan 2004
Posts: 21,095
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From: Toronto, GTA north
I never got to that point with mine, but we all know what a dirty filter is like.
I can't imagine it coming clean by just dusting it.
EaA filters should be cleaned every year or 25,000 miles, whichever comes first. Carefully remove the filter from the housing. Clean the housing with a shop towel, being careful not to knock contaminants into the air inlet. Filters can be cleaned by carefully vacuuming the filter media on the dirty side, or by holding the filter with one hand and carefully blowing the filter media at a 45 degree angle on the clean side using low-pressure shop air (15-20 lbs. psi).
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One would have to do flow and particle tests before and after to know for sure, but I would think it would be reasonably effective. No firsthand experience here as my CAI runs a K&N.
Even "dirty" i'm sure it still flows just fine. I've had mine for about 12,000 miles now, and it still looks just as clean as the day i installed it, and that's with the Stillen Blower which is pulling a ton more air through it then a NA engine. Also, the amount of "obstruction" sized particles that actually make it around your bumper into the airbox/filter is close to zero, so there's little to no chance of "clogging" your filter to the point that you are gonna tell a noticable difference between clean and dirty. If this was even a viable issue, i'd expect to see it in the wet filters more so then the dry style.
Just change it every couple years if you don't feel like vacuming it does a good job. They are only $35.
Just change it every couple years if you don't feel like vacuming it does a good job. They are only $35.
I tend to agree with DaveB.. I've been running Ea filters for over a year now... I tried vacuuming and using an air gun on it.. it still doesn't look like it's "clean".. it seems to flow well though. For 35 bucks a pop.. I may change mine this Spring... maybe just change them out once a year, blowing them out about mid year.
I tend to agree with DaveB.. I've been running Ea filters for over a year now... I tried vacuuming and using an air gun on it.. it still doesn't look like it's "clean".. it seems to flow well though. For 35 bucks a pop.. I may change mine this Spring... maybe just change them out once a year, blowing them out about mid year.
as long as it flows well and blocks dirt then its good.
When cleaned according to AMSOIL specifications and used in normal service, AMSOIL Ea Air Filters are guaranteed for 100,000 miles or four years, whichever comes first