89 KDX200 Expansion chamber needed


Nov 22, 2021
I'm rebuilding a 89 KDX200 and have almost all the parts I need. However I'm having trouble finding an affordable expansion chamber. I'm already spending far more than this bike is worth restoring it, don't want to fork $300 for an FMF, and they are out of stock pretty much everywhere too. Anyone know anything else that would fit, even if I have to modify the mount points, as long as it will connect to the exhaust port and be semi-close to the right shape. I can cut and weld mount points or tweak the pipe bend.
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