Originally Posted by bb609
And the winner is ??????
Well, I didn't have any complaints with the stock filter, but I HAD to experiment
The K&N allowed the inside of my intake to get coated with a thin layer of a very fine, talcum powder like dust during the summer of wheeling when I had it in.
I cleaned the intake out and tried the TRD, with the same result.
Once again I scrubbed out the intake and so far I am happy with the Amsoil. I over oiled it and fouled out the MAF the first time, but once I learned to oil it properly, then pat it down between two towels, it's worked fine ever since. In two years of running it, my intake is dust free.
And, to answer the question that always gets asked; yes, both the K&N and TRD were properly oiled and installed.
Based upon my experience, I will run either stock filters or Amsoil foam filters in all my rigs.