Yeah my KN was the one especially designed for the Bully with the big throatI should mention the K&N filters have larger air holes so they can go more miles between cleanings.
Your weather in houston is probably similar to the Calgary area aside from the humidity..but we definitely wouldn't be as dusty as AZ. Think Colorado. If I go 40, 000km between checking i'm probably good. Thats about 25K miles.I had about 20K on my K&N on my 13s front filter when it needed cleaning. Cleaning them is easy. In most cases these kinds of filters will advertise 20-50K between cleanings but as mentioned above that depends much on where you're riding.