Jetting w/ K&N AIR FILTER

[450RgETiRdONE]

What do you guys re-jet to with new k&n airfilter? No after market exaust, just 13tooth gear, thats it!

Also should i just take my bike to the dunes see how it performs bone stock then put my mods on it?

What ya think!

sorry but if you're looking for some type of performance gain with just an aftermarket air filter you are mistaken. I personally would rathe rhave the stock airfilter on there b/c the K&N's are junk and let in dirt & dut to your engine. Leave your jetting alone if you leave the airbox lid on. If you take the lid off then try a 165 main

[450RgETiRdONE]

Well no thats just to start. Thats all that my bro has done its not going to be left stock, thats not why i bought this machine.

He has airbox lid off, rejet, air filter and after market muffler?

I just wanted to know if i should take it out before i put all this stuff on it, and then if i didnt i never knew what it would of been like stock!

You recommend UNI filter???

[spindles]

k+n isnt the best filter for extreme dusty conditions but i found the air box design is so much better than the 400 it should be ok.
:) :D i have not been able to see any dust get past mine yet. i would jet up about 10 over stock. can't remember the exact # but try around 145 ?? :confused:

Originally posted by spindles
k+n isnt the best filter for extreme dusty conditions but i found the air box design is so much better than the 400 it should be ok.
:) :D i have not been able to see any dust get past mine yet. i would jet up about 10 over stock. can't remember the exact # but try around 145 ?? :confused: stock is 118