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BFK4lyfe138
10-22-2002, 03:14 PM
I am looking into gettin an xr 400 cam or stage 2 hotcam for my 400 ex ........... the question i have is will i need to rejet my carb if i add a cam? I have a 155 main jet in there right now with a KN filter and no air box lid. i am running a wb e series pipe with a stock header........... Also will i need to rejet if i add a header???:confused:
thanks to all that reply

99_400EX
10-22-2002, 03:50 PM
YEA