Header Question

[Z4J]

I have a 2000 400EX stock header. Does this fit all 400EX model years? Thanks

[Wildbrain]

Yes, it will fit on any 400ex motor.

[bigbad400]

if you take a dremel or small grinder and take off the restrictive weld on the inside of the header on the motor side and then put it on you will be impressed if you ever ran it stock. it adds a nice bit of throttle response as things flow allot better.