Non-Venturi Generator Exhaust Extender Ideas

it really didn't make that much difference to me at the time, but our generator is on the passenger side midships. for some reason, they routed the exhaust across the underside, and to the rear somewhat, just to make it come out next to the engine exhaust right in front of the rear tires. In our case, that puts it just a bit behind the slide, not directly under it, but still close enough to let exhaust up around it. Therefore, the length of flex pipe. It is enough bigger than the exhaust to allow for venturi effect with no back leakage. Completely solved my problem, cheap and very effective!