The ebay link , Kiwi Rider posted up for Akrapovic mufflers , a Japanese ebay seller , pretty expensive , but lists lots of trick parts for all Japanese makes . Some very desirable pieces for Suzuki models , namely Katana , GSXR oil burners , GSXR1000 and Hayabusa . I have been looking at his trick Gen 1 exhaust .
Had him saved for awhile , because he has listed Gen 1 full titanium cyclone race pipes , 2 actually , 1 with carbon 2 end muffler is long gone , but the titanium muffler version is still listed last look . There is also a short full Yoshi on there which is interesting , with some kind of variable canister on the side , and some nice twin slip ons as well ? The pipes are used , as with all the stuff he carries , but worth a look through his ebay store . Usually some nice rearsets for Busa , but check around for new price where possible and thoroughly check condition of anything to gauge just how good a deal it actually is . The fellow does get back to you if you want to ask him anything .