Just bought a C4 Two brothers......do I need to remap? And does someone have thier favorite setting code? I've read all the previous post but could not decide on what to do. Everyone has a different opinion!
You should remap, but at the very least, get the CO set to deal with the more open can. The general consensus has been to use the 2002 and later map in all years of bikes. If you are doing the Triumph standard issue thing, then there's an official map more aftermarket cans on a 2001. The numbers used to be 10115 for a 2002 and later and 10091 for a 2001 with an aftermarket can.
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