i bought 2 from japan - one i paid about £250 quid for (second hand) and the other had a split in it, i think i paid about 50 quid for it, but 2 of the sections are fine...
i can have a quick look for u to see if theres any about but they dont come up very often, and there will be a 6-8 week wait if u dont want to pay postage..
being titanium they are very delicate, so always good to keep a spare section..
just bear in mind that they are very very loud.. ive been pulled over many times, and if its road traffic police and no what they are looking at u will get a 60 quid fine.. anyone who wants to listen to it can come down to surrey rolling road day, on the 13th march as my car is booked in with quite a few others for some power runs