We live on our generator quite a bit. We have a portable stack extension that holds on the the side of the coach with a set of suction cups. I had rigged a harness to hold this stack extension pieces in the generator bay, when going down the road. Kind of a pain to always have to take apart or put together and because of diesel soot, dirty.
Working on a resolution to semi permanently install the stack strapped to the side of the roof ladder. Initial test are working well. Using flexible 2 inch exhaust pipe to connect generator tail pipe to the extension intake manifold. Attachment to the ladder is by heavy duty plastic wire ties.
During test, I'm using a 6 foot piece of flexible 2 inch exhaust pipe. Has worked well for the last 16 hours. Right now, the flexible tube lays on the ground and may be absorbing vibration. Next step is to run a couple of stainless steel screws through each of the 4 sections of the tube to make a more permanent connection, than just the slide fit. May eventually try a shorter section of the flexible exhaust pipe, but right now just working on securing exhaust extension for travel down the road and then changing from regular tail pipe to flexible tubing when set up for using the generator.
Initial test are proving very promising.