I replaced the old filter a couple of days ago but noticed there was no retention clamp holding the filter to the intake tube. It looked like the filter was just pushed onto the intake tube and held there by the filter contacting the airbox at the opposite end. There appears to be a channel molded in the air filter at the intake tube end of the filter where a band type clamp would fit. Even though it seemed like a snug fit and it looked like the old filter had not moved away from the intake tube to any degree. Just makes me nervous seeing this type of friction or interference retention method. Should there be a clamp holding the filter in place?