My brother put a Muzzy slip on pipe on an 04' 636. He wants to know if it needs a jet kit or remapping. It feels as if its not running as well as with the stock pipe. Thanks for the help.
you could REMAP it and make it a bit richer across the board. bikes are tuned lean from factory to help pass emissions. you wont really hurt anything not REMAPPING it but it may help in the SUPPOSED running problem. :wink:
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