what jet size should i run with a k&n

[YFZracer12]

Originally posted by: drag101
mabey i shoulda mentioned i have a uni filter in now along with my yoshi pipe and no lid see im asking this cuz im trying to get the most outa my quad right now as is and ive hear that a k&n will let me put a 155 or higher in and get more power.........right now my top end is border line blowing up so im just waiting for it to and then im gonna either throw a 440 in or 426 or 416...so as of now im just trying to get everything rdy for it

440's are really nice use to have a z-400 that was my gf's and it had a 440 kit in it talk about power coming out of a z-400 hehe

[drag101]

i heard the 440s over heat wicked easy

[Ganggreen]

Its not worth your time switch. Just keep the uni on and ride!

[YFZracer12]

When your tring to get the most out of your bike K&N is WAY WORTH IT

[4given]

Originally posted by: drag101
i gonna take out my uni and run a k&n cuz i want more power can i jet up even more wioth the k&n or is it a waste of time ....i have a 150 in right now and stok is 148 and there barely any difference at all what should i run with the k&n

I have a '05 400ex and recently put a k&n powerlid on with stock filter and 170 main. good power gain no stumble = very happy