04-05 and 06 up uni filter

[treadway47025]

I was at a local dealer ship looking at uni airfilters for my 07 450er and I saw that the 06 up is black and alot bigger than the 04-05. Whats up with that??

[Colby@C&DRacing]

Some of the uni filters come black and others in red. Black was just something they were trying but they are going to stick with the red since it is easier to tell when it is properly oiled. The 06 filter is larges to increase air flow for more HP.