View Full Version : Do I need to rejet?
CrewCab
04-24-2008, 11:05 PM
Purchased a FMF Powercore4 slip on and wanted to know if rejetting is needed. It will be going on a 06 Honda 400ex with stock airbox and headpipe.
MTDman11
04-25-2008, 07:47 AM
pretty much everytime you change exhaust you have to jet. i heard from other people at fmfs website the have recomended jetting specs for each pipe
yes you will definetly need to rejet.
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