I found these after spending some time on lancerregister.com.

http://www.apracing.com/roadcar/brakekit/stdrive.htm

It looks like the strap-drive has some advantages over conventional floating discs. I wonder if there's an importer for AP, and if so, how much a set of these discs cost.

 

if you go to AP's website, they can point you to a us distributor. I know there is at least one, i just don't remember. I'll bet they run $700-900 a pair