Stock Exhaust diameter ????

[Spudley]

Feeling lazy, so who has the exhaust diameter spec for a stock Hayabusa ?????....want to put a flexible exhaust joint in place of the ceramic element at the "X" on my exhaust.....

Thanks for the read......

[Rojo]

Gen 3 exhaust options | Gen 3 Busa Information

Just bought a new black and gold Gen 3 in the uk. What are my alternative exhaust options?

www.hayabusa.org