So I am tired of waiting for someone to do this thing so I went ahead and purchased an RS5 from Yoshimura and it should be here in 3-4 weeks backordered
Should look good considering it is only 12.25 inches long! Clearance may be a slight problem but if using the Mad Doc, or some cusom taillight/signal/license bracket (I am leaning this route for now) it should be close but not scrapping.
The inlet on this thing is 2.25" and that looks pretty close to what the pipe on the S3 is (before the ugly mid pipe triumph currently has) can anyone please verify. If not I am just going to have to make an adapter...
I will post tons of pictures as this progesses!