HCR250X
01-22-2004, 02:25 PM
I was wondering what I can do to get some HP out of my 400ex. So far all I have is the WB pipe and a K&N. I dont really want to bore it out yet, becuase I am running low on money and really dont want to tear apart my whole quad. I have heard of a alot of things to do but dont really know whats the best. I am looking to spend no more than a couple hundred.
Also what does an timing advance key do and is it worth the 20 bucks?
Also what does an timing advance key do and is it worth the 20 bucks?