I have run the K&N filter on all of my vehicles since 1990 with no troubles. Every vehicle I installed the filter in I heard from the 'experts' that it was going to ruin the engine by letting particles get past and wear the rings and cylinders causing oil burning and that it would ruin the sensors in the intake tract for the fuel injection. 5 vehicles, no oil burning, no problems with the sensors in the intake tract. I must be doing something wrong.
I have even used a K&N on my Husqvarna commercial mower since 1996. No oil burning and the secondary filter stays as clean as new, something the OE primary dry filter never could do.
PS. The Toyota TRD filter is an oiled filter.