Hopefully this site will work. If not it is in my profile. This is my air filter. This is a Tymar setup. I change the filter oabout once a year. After the first year it was on, I cut the old one open. Very clean inside, no dust in the turbo. I can hear the turbo whistle if i step on it. If I am outside with the hood up and shut down the engine it sounds like a vacum before the turbo winds down.
http://rides.webshots.com/photo/1174...58432646uRdMkG