I was wondering how loud the Yoshimura RS-3 would be on a 400ex? Is it quiet enough for the trails and everything? How would I find out this information?

 

Hey whats up. I have ben on trails and i have a HMF pipe on my 400 and a 400 with yoshi passed me and i could hear him pretty easy so i think it b pretty loud because HMF barks.


MY RIDE
2004 400ex
HMF Slip On
Dyno Jet Jets
K&N with outerwears
Weisco Piston 11:1
Stage 2 Hotcams cam
AC Nerfs
AC Bumper
PowerMadd Handgaurds

 

im still wondering about an exhaust. i either want the WB E-Series, LRD, or Yoshimura. I want a deep sound so which one do you think I should look into getting?

 

As far as power, I don't think the average rider will be able to tell a real difference.
I have the Yoshi and the only complaint I have is it doesn't attach to the bike worth a darn. You think they would have come up with another mechanism that the exhaust hooks to frame better....it's horrible. Comes loose and wobbles every other ride.
My bud has the WB pipe and it sounds relatively the same. Again, this is just a normal dude listening to it, both are loud. His WB pipe attaches perfect and we run pretty much the same when racing around together.
No experience with LRD, but from what I read they seem very nice (read $$).
For noise, ANY aftermarket pipe, especially what you listed, will increase the noise considerably. One vs the other...well....they are all loud (in a good way!).