I just got a K&N filter kit for my quad. I was wondering if I might need to rejet, I hear people on here talk about moving the needle one up or two down not real sure what that means. Also what is the best may to do the mods and be able to check my plug often. It's a real pain to get to.

All the help would be great!!

Thanks
Roman

 

u prob dont have to, but u will get more performance out of it.