Best Exhaust system for 400ex?

[stonerider250x]

I am gonna get a 400ex soon and the firdt mod im gonna put on it is an exhaust system. right now i was either thinkin of a powerbomb header and bills thunder silencer or a sparks x-6 ive also been lookin at the big gun and WB E series. which of these is the best and is there any that are better?

[trailburner]

Go to "frequently asked quistions" on the forum page.there's a pipe shoot out.click on it & it should help you deciede..........
PS: I would go with the E-series.....;)

[Colby@C&DRacing]

I have had very good results from all of the pipes that you listed. I like the sparks x6 or x4 the best but any of them would give you good power gains:)

[Silverfox@C&DRacing]

If you are going to do a bigbore kit in your bike in the near future I would go with a full system. slipons make better low end torque.

sparks x-6 full system for more topend power and running better for higher bores or sparks x-4 full system for more lowend and running better for stock bikes...if u want a slipon get an e series or FMF those r the best slip on pipes

[EXtreme]

I've got full graydon Exhaust and I really like it. Dosen't seem like much people have it though. I don't hear alot about it. I really like mine though and I like the silkencer on it its red ionized

[stonerider250x]

im not plannin on puttin many motor mods on but i am gonna get a K&N filter, filter outer wear, possibly a bigger carb f i have the money, maybe a hotcam, and weisco high compression piston with these mods would the sparks x-6 or x-4 be better?

[Silverfox@C&DRacing]

With those mods, I would use the x4 if you want more bootm to mid and the x6 is you want more mid to top.. I would also suggest the JE or Ross piston would be a better choice.

[Corey Wiltzen]

I have a stock 400EX with a CT Racing Slip-on and I think that it makes my quad a whole lot better. If I were you I would get the same.:)