I've found 'whisper kits' for Shoei helmets. See http://www.hideout-leather.co.uk/folders/helmet_accessories/helmet_accessories_whisper_strip_kit/ for an example. I wear a very noisy KBC, and without ear plugs 100kmh is sometimes actually PAINFULLY noisy. Has anyone used a whisper kit? Does anyone know of KBC whisper kits? Will the Shoei version work just fine on any helmet? (I can't imagine there's much difference in the shape of the bottom rim from one helmet to another... is there?) If you know anything, feel free to help!