FMF powercore IV2 I seem to got riped
#1
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i bought the FMF put it on i dont really see any change if anything i seem to lost some power... with out the FMF i could in 2 gear just roll into a wheelie and keep it up till i brought it down now i really seem to have to work to get it up...anyone esle have this pipe and can tell me what they think any info would be great
#4
#6
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I have just put the powercore IV squared on my 400ex and it is a day and night diffrence the power is all the wat thought the powerband,its a little louder than stock at idle but it realy has a deep tone to it it sounds great I would say that its the best mod I have put on my bike. What your jetting ????
#7
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#9
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Call or e-mail FMF about the jetting that's what I did, I live in Florida and FMF told me to go up two sizes on the main for just the pipe,and if your are running a vented air box lid to go one more size.You can jets the jets from your dealer and trust me once you get it rejetted you wont be disappointed
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