brother,
toyota do not manufacter filters (oil or air).
They just buy it from some 2nd or 3rd class company and tag them as toyota and make big money (i wish i could be toyota's ally and may list among richest people in pak. lol)
presently leepon's filter (made in malaysia) are the best.
Go to the oil shop, and read carefully the box of oil filter. If it has bypass valve, then surely it will be mentioned over there.
All the best.
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