450 conversion exhaust

Someday I will plan to convert my yz400f over to the 450 like people are doing on their 426's. I have a question on that though. Since the 450 subframe will be used on the 400/426 frame, won't the stock 400/426 not bolt up? Will this allow me to use 450 exhaust if the bolt holes are different?:bonk::naughty::D

Someday I will plan to convert my yz400f over to the 450 like people are doing on their 426's. I have a question on that though. Since the 450 subframe will be used on the 400/426 frame, won't the stock 400/426 not bolt up? Will this allow me to use 450 exhaust if the bolt holes are different?:lol::p:lol:

PAGING MAVERICK 26

PAGING MAVERICK 26

---You sent me a PM, but I can't reply if you don't allow receiving PM's-----

There is also no email listed for you... :lol:

Please reply with an email or unblock your PM system.

Thanks,

James

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