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Discussion Starter #1
Just bought an 08 Ultra. I want to put my old slip on mufflers on the bike (SE Pro-One piece performance mufflers, part #64903-99) because I really like the sound. I will also do the high flow air filter. I wanted to buy a SERT and tune it properly, but the dealer said it would void my warranty. They suggested that I do a Stage one download. I live in Calif. and they said something about a CA download, which worries me.

Questions: Would the bike run too lean with this set up?
Does using a SERT void warranty?
Would these mufflers perform okay on an 08?

Thanks in advance.
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