This one was a quicky that went way better than I expected, though I haven’t really tested to see if there is any actual improvement.
The situation: the engine on this bus sits further back, pretty much in the cab of the bus. This provides some benefits, such as visibility improvements and a unique look.
The problem: this bad boy is loud and hot.
The solution (not really a complete solution): replace the sound/thermal lining on the interior of the access cover in the cab.
To cover this:
Using this: http://amzn.to/2p22C5z
I was surprised how easy it was to fit to the cover. Time will tell if it helps at all, but it definitely looks better, which is very important. Maybe one day I will double it up.