i'm sure you could find SOMEBODY out there that has already thought of this... and if not, somebody else is gonna be good enough to fabricate you something (might need a midpipe to get the angle though). i'm not THAT familiar with the exhaust on an S.
i know there is a member who took a 07 exhaust and throw it on his 07 candy S, so it can be done. and since the S has its baffling in the stock exhaust and the regular has it in a box underneath the bike before the exhaust, this will also be a volume increasing modification for the S
Alot of people seem to like the HR1 riot for a short exhaust. i went with scorion street extreme..short exhaust with a pipe
you can do it, it isnt hard at all. just need an adapter for r6s header to r6 slip-on. the pipe diameters are different. then just 2 clamps and your set. only thing is the slip-on sticks out far and it is loud. i have a gytr pipe that would be perfect for a r6s mod if you interested pm me.