yzf450 header

1 reply to this topic
  • cj1371

Posted October 07, 2004 - 03:18 PM


First, just wanna say thanks to everyone. So many people have made my change to 4 strokes easier. Now my question. The header on my 03 yz450f is jacked. Will a header from an '04 yz250f work? I know this sounds stupid, I would imagine that the 450's header is bigger, but a guy at the track actually said it would work. Thanks again

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • SureBlue

Posted October 07, 2004 - 10:30 PM


Hi, to my knowledge at least the diameter for the canister is larger on 450 header and filling up the gap is gonna give leaking troubles if u use 250 header. Can somebody confirm?

Related Content


Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Megabomb Fitment by 288yz450

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.