2006 yz450 stock exhaust fit a 2007?????

Does anyone know if a 2006 yz450 stock exhaust fit on an 07 yz450

The complete exhaust will, but there's a mismatch in header diameters when trying to mix the '07 header to the '06 pipe. I have heard that the use of the '07 muffler seal in the '06 muffler fixes that, but you need to check on that.

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