I've been enquiring with a few muffler / exhaust businesses about Stainless Steel mandrel bend extractors for our America / Speedmaster bikes, but it seems none of them are interested in making them (including D&D who I thought would do so). So anyway the only option moving forward is to custom make them.

The only option so far is for me to have the flanges and lower mounts made by a local engineering firm, send a mock version (normal pipe tacked together) to a mandrel bender to have the pipe bent, then have an exhaust shop (or tig welder) weld them together.

So to my questions - is the balance pipe (under engine) required? is this my only fabrication option? and if so would anyone else be interested in purchase if I were to make multiple sets?

TBA, Stainless extractors / drag pipes, 65mm over forward controls, Thruxton needles, 904cc, head ported, lowered 1-inch, Console removed, relocated battery box, Australia.