Installing a CPR air filter on my 990

[olec]

Hi guys!

How is the intake noise with the Rottweiler filter? I ask because I have a K&N filter in a superflow box and It barks pretty bad at me between 4000 to 4500 rpm. I can live with it, but always looks for better options. And a K&N filter isn't giving me the confidence when talking about water / mud etc.
Oh... I got about 12 more hp's on the rear wheel with this filter plus some dyno time. The filter alone added 7-8.

Thanks!