blkbrdrydr Posted November 1, 2003 Share Posted November 1, 2003 If I install a pair of TwoBrothers Slip-Ons, what other changes will my 2001 XX require? Power Commander? K&N Air Filter? Or... will the bike make its own necessary adjustments for the fuel injection system to handle the new mufflers? Quote Link to comment Share on other sites More sharing options...
Edward Posted November 1, 2003 Share Posted November 1, 2003 I have a set of Two Brothers C-4 slip-ons. There are no mods needed, the bike runs great. Quote Link to comment Share on other sites More sharing options...
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