Exhaust Turning Black

Question for Fix My Hog I have a FHLXS 2014 stage 4. I love the Vance and Hines 450 pipes, but the left exhaust is black all the time. I was told by Harley that was normal for these mufflers. Is this true?

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Fix My Hog Answers Really very common. Usually nothing to be overly concerned with. If your spark plugs look good, we suggest not wasting too much time pondering it. If, however, your plugs are somewhat “sooty”; you may be tuned slightly rich.

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