1983 BMW R100RS crossover pipes length

[Enforced_Leo44]

I was lucky enough to find a set of perfectly chromed NOS headers for my airhead at a very good price, but the crossover pipes are missing, can anybody give me the precise lengths of both pipes so I’ll try to make them?

Thanks in advance, Leo

[SteveD]

Electrolux vacuum cleaner straight tube fits in the short term.

Prob best to fit the headers, line up the X-over stubs and measure for best accuracy.