Ok my dealer sells kawie and suzk, they say on the suzks they run more yoshi but on the big greens they tend to run muzzy, i was wondering which one has better performance, im talking about both pro series. Price is not the issue! If i do go with the yoshi, should i also run there cams or are hot cams better?

One other Question: what size jets should i be useing at sea level with the mods i have. Air box lid off.

 

Bump anyone know?

 

I'll chime in ,Muzzy makes more power on the V-Force.Muzzy adds power to the low mid range can't give ya anything on the Z400.Go to a GNCC and see what those people are running.

Muzzy is a good pipe.

 

Get the yoshi, i have a full system and a k&n with open air box and am running a custom jet that i made by taking the smallest drill bit that comes in a drill set which i think is a 1/16 or a 1/32 cant remember off the top of my head but it probably equals out to a 170 or a 175 and man let me tell it f*ucking cranks. I havent been beat by any other 400 with same mods! The reason why i made a custom jet was because i had only jets that went up tp 155 and that wasnt enough, So i saw that the bit was just a little bigger than the 155 jet. Also i am running stock gearing. I dont know how that 13 tooth sprocket affects the accleration and top speed.