That looks like the exhaust pipe from your generator. If so, mine (and I think most) are the same way, coming out on the driver side. During a camping trip I don't spend much time on that side of the rv so it's never really been a concern for me. I'm sure it could be re-routed, but I don't know what problems the extra distance the exhaust would have to travel could cause. I'm sure someone else with more knowledge will have an answer.
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