My toyota dealer said I shouldn't keep my K&N Air Filter
because it can cause the MAF to malfunction from the oil on the filter and then the replacement MAF would not be covered under warranty.
I brought up how the TRD
filter is almost the EXACT same as the K&N and he said it probably uses a different type of oil or something because they've never had a problem with the TRD
filters, but with K&N they have.
Anyone know about this? Or do you think they're just B.S.-ing to promote TRD