yes.. its true.. you can only buy Black Widow exhaust from Black widow.. they are a very small co. and they dont deal with any re-sellers... i paid $600 shipped for my Extreme High Mount...
i would call them asap if i was you.. there is a good possibility i got the last one for the 02/03 r1...
when i ordered mine.. they said they had them in stock.. turned out they were out of the high cross pipes.. so since he told me he had it , he had another cross pipe made special for mine.. so it took it a month to get to me.. he said once their limited production run is complete they dont make any more..
so .. call them asap.. they may still have them..
cross your fingers..
IXI