I have an 08 xb12scg and i was thinking about getting the ss drummer. But i have a question, I called my dealer and asked him about installing and tuning the bike to exhuast. I also asked about the race ecm. The man i spokewith then said that he didnt think i would need race ecm on the 08's because they are more customizable, but he still recommended the kN airfilter. Has anyone else had a ss drummer installed on an 08 xb12 with and without the race ecm? If so any feed back or dyno results?