I have both the Sebring and the Yosh systems! Both with Aluminium cans. The diameter of the Sebring can is larger by about 1/2" (without going to look), so there's a different pitch/flavour - to the exhaust notes. The Yosh, being 'less deep' than the Sebring can - packing material being equal. The headers are different, inasmuch as the collector of the Yosh is further down than the Sebring's, which is very much closer to the manifold - both entanglements are different. I've always found the Yosh to be more substantial in hp and drive-abilty gains, noticeably in the mid range and consequentially spreading over to the top end - the Sebring, gains from stock at the upper realms though a little harder to get right else where(that might just be me)! The Sebring does however give you access to the oil filter with out hassle, the Yosh doesn't - requiring removal.
Ease, or Sound!?? - might be a basis - the Yosh is a better performer, the sound is a little more raspy but when the packing blows out of the Sebring it sounds so Classic (maybe at a little loss of power, unless exploited?). If you're after the best header, it's the Yosh - for performance. In my Florida days, a buddy had the Yosh system but with a Carbon F can - outrageous roarhtttt to it at about 7K, complete tonal change - as if the fibre was giving it a richer timbre. If you want a good looking Stainless system, with a Triumph plate on the Can, making it look kinda stock, with oil filter access and the knowledge it's the Official Race pipe - then it's The Sebring. Both very good, the Sebring being better built, approx. same weight which is about 10lbs(?), 25lbs or so less from oem. Put it this way, the Sebring is more
'Boutique', than the Race inspired Yosh! Gains are greater with the Yosh but it's hard to live with - the Modest gains of the Sebring plus it's other benefits make it a favourite, still.
There are other Systems about, Remus does(?) a very nice piece of 'tut', Hinckley has one I believe, Staintune, not sure if D&D ever did a full system(cans are so loud
), TTS(UK) which ultimately became the Yosh, Jack Lilley did one. There were many and quite where they went I do not know. Someone has to have access to all the header designs for a T300 bike, or at least some race bikes, where all the pipe configuring began. Most of the old pictures on the web from early on ( Speed Triple Challenge Mobil series 94-96 ) seem to have dissappeared - like history being forgotten, perhaps a research project for a dedicated soul. So really it's got to be what's available, that will limit the choice. What are the Sebrings going for nowerdays, they were $900? The Yosh - $475!
But it's also a question of where do you take it all - the Sebring is always worth it's price and the Yosh.... if you can find it!
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