Turbine Doc had the same problem, switched to a direct replacement Amsoil oil free nanofiber air filter and solved it. Let me know if you are interested.
Ashton
I copied this because it is a reasonable description and I was too lazy to do it myself.
On Edit: I can however speak to it with a reasonable amount of clarity if it doesn't make sense to someone.
http://www.physicsforums.com/archive/index.php/t-155498.html
"You can express the mean...
I'm looking at Warn winches for my Kaw 650. I think the 2500# should be enough. Anyone have thoughts between the RT or XT series? Is the 25 enough or should I bump to the 3000# rating? Other random input?