hmm... interesting to read how filters vary in quality... i always thought that an oil filter was jus a damn oil filter... gonna change it out in a few thousand miles anyways, but i guess i was wrong... fram does suck in quality compared to other brands.
this link below opens up filters from different names, but are for bikes... but i'm assuming construction of oil filters from each manufacturer for cars and bikes are the same...
motorcycle oil filters exposed (link)
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