This foam seals nicely around the carburetors. The Amsoil filter is a two stage polyurethane foam filter with a steel mesh cage on the inside of the filter. This makes for easy foam removal as you do need to remove the foam from the steel mesh frame to wash and reoil yearly or every 25,000 miles. The filter is black in the middle and light gray on the top and bottom. The two stage filter is nicely finished with the Amsoil logo inlayed in the foam.
Installation is a snap.
You must remove the standard tupperware to get the old air filter out. Then replace the old filter with the Amsoil filter. The top cover must be pushed lightly to seal. This provides a true airtight seal between the covers. The bike definitely has quicker throttle response.