Anatomy of a Hayabusa exhaust system

[CaptainRob]

I don't think the heat will be too much of a problem. The outer pipe is there for purely aesthetic reasons, nice and shiny and phat! Double-layered bling - just like Harley pipes! The thing is that the Hayabusa mid pipes are high quality stainless steel, not chromed shitmetal. They will work well but will undoubtedly discolour. But I've always liked that blued look. If theres a risk the heat might damage something I'll just put exhaust wrap on it. I like that look too!

Picked up my 2" diameter donut today. I need the donut to ensure I get equal length pipes into the 2" collector and still fit within the tight confines of the catalytic converter shell.



I'll cut segments from the donut and weld them in the desired plane to match up with the stock, gutted, stainless steel mid pipe.

First I need to make a jig to hold the headers in position while I remove the catalytic converters from another set of stock headers I've got stashed away.

Hey Fester, I checked out that website, love the pipes on the Porsche tractor! (Yes, Porsche made tractors once!)

I liked the porsche tractor exhaust sitting on the granite kitchen bench - obviously an understanding wife!