I have a Twin Air Powerflow Kit for my bike (with the cage). I need to order some replacement Twin Air filters. After looking at the store, I realize that there are two different kind of filters....the Powerflow filter which has a black inside and more mounting holes...and then a dual stage which has an orange inside with only one mounting hole. I actually have both of these types at the house right now.
What is the difference in the filters? Why two types?
Why does the Powerflow not have the three mounting holes?
Can either filter be used with the powerflow cage?
Why is there a dual stage filter listed for the 250R in the catalog, but not for the 250X?