Polishing Exhaust

Q: I have a FHLXS 2014 stage 4. The Vanes and Hines 450 pipes LOVE THEM but the left exhaust is black all the time. I was told by Harley that was normal for these mufflers. Is this true?

A: 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. Polishing exhaust may help.

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