The consensus on Oiled air filters (either K&N or TRD Et All) seems to be that they are Ok on the street but are less than optimum for off road, particularly in dusty conditions. I have used all three in my 80 and I prefer the OEM paper filter for overall vehicle operation.
When I feel a bit frisky I put my under-size blower pulley on and slap the TRD filter in the housing.
Lots of fun for street racing but sucky off road 8)
When I feel a bit frisky I put my under-size blower pulley on and slap the TRD filter in the housing.
