mx4

[jeremyd]

what does everyone think of the white bros mx4 pipe. Is it very loud? What jet requirements does it need? Can they be made without taking all the plastic off? I know that is quite a few questions, but i am going to be making this change soon.

[hoodie]

For jet requirements it is 155 main, stock pilot and needle in stock position according to White Bros. web site. As far as how loud it is I am not sure that I have heard one on a 400.

[jeremyd]

is a 155 main hard to install? I am pretty new to this.

[hoodie]

not at all. when i do anything to my 400 i just look in my clymer manual. best one imo.