Motocarrera pipe compatibility

[motosapien]

Is the Motocarrera Millennium pipes made for RD400 Daytona compatible with the 76-77 RD400 models?

Thanks

[bitzz]

Head bolt spacing is wider
Hangers in a different place.

[Dvsrd]

It is also possible that the power curve will be different, as the exhaust port timing differs quite a bit between Daytona and previous RD400 versions.