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V&H Oval Slip Ons


Put a set of v&h oval slip ons mufflers on my '07 street glide, the dealer told me I didn't need to do anything else to the bike since it had o2 sensors, but feel it needs more, Help!!!!
If you are talking about true duals, they are something different than a fuel enrichment device.
I have V&H Oval slip ons and stage 1 air cleaner the dealer did a download. Does that help richen it up or do I need something else?