Very good condition they need only one bracket that missing and then they are ready ! Very rare and beautiful I dont know about performance but ethos used to make very good exhaust system!
With carbon silencer very light and stainless steel! fotos later!

Some link with the pipes
http://www.dreamgate.ne.jp/nsr/Tuning/ethos.htm
http://www.twostrokeracelab.com/2012/01/ethos-tornado.html

Pm me for price!