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Harley Davidson FLHXS MPG

6 Harley Davidson FLHXs have provided 36 thousand miles of real world fuel economy & MPG data.
Click here to view all the Harley Davidson FLHXs currently participating in our fuel tracking program.

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Tips

Install a Cold Air Intake

If you live in a drier climate, install a cold air intake un... ...

by slopo

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