Need to rejet?

[White7]

Sorry newbie here, If you go any kind of aftermarket pipe(slip or full) do you need to rejet the carb its a 450R

[mattonln]

yes. if you leave the airbox lid on, go to about a 150 main jet and if you take it off, try a 175. you should only have to change the main jet. FMF jet kits are really easy to use and come with detailed instructions....;)