A good question for SMART atv owners.

[super_man37366]

OK read this and open the picture below. so you know exactly what I am talking about. My friend has a 250ex (wait dont run off yet it aint about a 250ex) but neways he bought a DG exhaust it runs well ok I guess here is where my question comes in. ok the part of the pipe the long piece ======== that enters the pipe itself is in a strait line. I wondered if that is why some pipes are different and what one is better such as the Graydon. The part that goes in it is big like a cone I figured that would be more horse power kinda like the yoshi pipes are made.(look at picture i cant explain).. well thankz please explain.....

[Scott400EX]

Yup das right!! The bigger cone on the full exh systems make more HP than the none cone type!

[BrianWrightR6]

Yep just like on my full White Brothers....

[super_man37366]

ok good alot or just a little? thankz hp? that is

[phatswinn]

i think that would be the reverse megaphone, if im right it creatse some kinda or a sucktion so the pipe can be really free flowing for top end and still have the back pressure for low end riding. someone correct me if im wrong