How hard is it to install a gsxr shock.  I have been loking for a katana shock but cant seem to find one that I can afford.  I can get an 04 gsxr600 shock pretty cheap.  Cant find any info on the install

I don't know how long you have been looking for a Katana shock, but I found mine fairly fast. I think around two weeks and I am sure it was under 50 shipped. As far as the install procedure, I am pretty sure it is the same process. Unless it has a external gas reservoir.

then it whould be the same as mine, takes about three hours or so to put on, and you need the lower linkage.