I have seen alot of people suggesting the hmf pipe. I have a 400 ex stock and thinking of getting the slip-on pipe, my question is does it come with the necessary jetting or do I just buy a jet kit also? thanx for the time.
phil

 

if u order it from hmf it still comes seperate u just ask for it and it cost a little extra

 

hey thanx alot bro. I have also seen alot of conflict on to change the stock pilot jet or not. I'm curious on this and also the main jet the one they recomend seems like its a big step up. I think they say a 175 main. I believe the one in a 04 400 ex is a 148. anyone have any suggestions here? thanx
phil