Exhaust springs for header - ID help?

1 reply to this topic
  • ack1961

Posted July 07, 2015 - 04:32 AM




I searched through pinned stuff and didn't see anything that helped.


I have an '03 WR450, and I thought the exhaust was stock, but the header looks different than the OEM exploded view.


My header slips onto a separate connector (gold colored) that gets bolted (one bolt, one 6mm hex) to the exhaust port through a separate flange.

The header then slips over that connector and is held in place by 2 springs.


I'm missing those springs, and my 2 strokes use 75mm, which are too long.





Can anyone identify which header I have, so I can buy the proper length springs?

Pictures are attached.  






Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • billygildark5007

Posted July 09, 2015 - 07:34 PM


That little bolt on part of the header seems odd to me...
Someone please correct me if wrong but it kinda looks like someone cut the oem header down so some other header would slip over it?
Why not just have them welded together if it runs great?

Related Content


Need help by Goforaride

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  68 replies

Is the 2016 GYTR Yamaha YZ450F too fast? by Fryboy

Dirt Bike   Special Interest Forums   Pro Racing
  • * - - - -
  • Hot  241 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

100 hrs on 2014 yz450f, shim valves or replace them? by ttr230rider6

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  79 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.