As you all may know, I traded in the Yam FJR on a new Blackbird. As I had a set of pretty new Staintunes from the FJR, I thought I would ask Staintune if they would convert mine over to fit the Blackbird - fairly simple to my mind - cut off the extension pipe running between the cans and the headers and weld on the Blackbird version to my existing cans.. In their reply, they advised me that to do THAT!, would cost more or less the same as buying a complete knew twin system to suit the Blackbird, and they can sell me those...$1200 approx... WHAAA!!!!!???...so much for providing some genuine service to an existing customer...They could have won me over for life - instead they've lost me forever! I replied and requested that they sell me the pair of extensions, and I'll arrange my own welding...but I hold little hope of getting them for a reasonable price, if at all.