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Discussion Starter · #1 ·
is a pc3usb worth the money by using the stock exhaust but a bmc airfilter?

by analyzing the map for a european model i saw that already the map for the stock
bike enriches the fuel air ratio by more than 10 percent above 9000rpm. the us models are getting enriched even more as i understood.
i mean the stock setting is running a bit lean. could anybody confirm that?
anybody already installed the pc3usb at stock settings and could tell his impressions?

greetings from switzerland

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