It is a Unifilter.....YFIN. In answer to the other question about the internal plate I got this so the ITG filter would fit as it is a different size to the unifilter. I did not think much of the Unifilter as it does not seem to sit right in the box (my opinion and that of the filter man at ITG who is a filter specialist). Any enjoy would be interesting to do a dyno run against yours yfin when I get a few more K's up to see how much the diference on a dyno is. The other thing is to put your Icebox in try it with your filter then try with mine. One day when we are both doing a dyno day like last time.
