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Discussion Starter #1
I installed this kit just before xmas and noticed some pin holes in the very bottom of the pleats(while holding up to a light).I was concerned so sent K&N a email.They replyed that this is normal saying that there is 4 layers of the cotton gauze and microscopic fibers cross these pinholes.Also say they have had 2 independent tests(sae standards down to 0-5 micron) that show a 97% eff. rate.Ome standards are 96%.For a comparison a paper element has a 98% rating.Just thought info may be helpful as I have seen several coments about pinholes before.Personally I am not going to worry as I think K&N has been around for a long time and has a good reputation as far as I know.
 
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