The dealer told me the main dif was the California model has stainless headers, while the 49 state has Ti. I haven't been able to confirm it though. Other than that I don't know. I'd be interested to know all the differences also.
My CA bike has Ti headers. I'm not sure if there is any real difference besides the air-injection. It doesn't really matter though, because I think this bike is plenty fast enough for street riding.
Scott
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