The differance from a Yosh-RS3 race and a Tri-Oval Cyclone according to Yosh USA is, a differant sound, 1%performance increase in the midrange, several hundred dollars over a RS3. I called and asked.
Tri Oval is the pipe on the X Formula bike raced in Japan by Yosh-Japan (Ti pipe/carbon can).
In the AMA Formula Extreme #70 R.Greaves uses a high pipe RS3 (Ti pipe/Ti canister).
A Hayabusa race bike will next be seen in endurance racing in US.
Yosh Hayabusa race parts are being developed in Japan by Yosh-Japan.
Gixxer1300, the prices you quote are for stainless steel. The TI system for sale here on the site is a good deal if you want a Yosh. TriOval gain over RS3 is only 1% in the mid range, but has a differant sound.
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