Anatomy of a Hayabusa exhaust system

[Camel]

My thought is to remove all internals and fit a 50mm tube from entry to exit. No perforations. No silencing material. Will be fairly loud but look entirely stock (even plan to re-weld screws on end caps). Only a Busa owner might notice the absence of small pipes in the muffler outlets.

If what I think you're saying is correct, then you will have no muffler?

I think someone might notice there's something adrift with your exhaust!

---

I need to get logging again, so last night I welded the catalytic converter housing back together again, smoothed the welds and painted the carapace. No cats inside this time. Rode into work this morning (its a great run from the hills) the lack of cats has made no appreciable difference to the sound levels but my Wide band sensor is behaving consistently now. Still got the standard mufflers on it but pick up my stainless steel 50mm donuts this afternoon so I can hook up the modified muffler and convert to a 4-2-1. Shall post up progress images.