I don't even bother on the 400... I just let the side panel push against the exhaust can... so far so good (although, the OL30 is on the 950SE way more than the 400). In reality... any high temp hose and a hose clamp would do the trick. Both should be available at a decent auto parts store. Still too much $$? Go to an auto repair shop and see if they have replaced any high temp hoses and use the old hose with a hose clamp.