apparently where not going to hear anything back from volant as to the updated tube/box whatever it is .Anyway I tried something that seemed to help alittle bit.I removed the top lid that says volant on it.got some foam from home depot or lowes,it's made for window unit a/c,the foam is about 2 inches square by around 10 inches long.and put it on top of the box with 3m double sided tape.I just put it on the side that would collect engine heat,like an L shape so it would seal around the bottom of the hood.It seemed to help alittle bit.Give it a try it's cheap,if you don't like it just remove and reinstall the lid.