A New Exhaust

[fastone4700]

I am looking at a new set of slip ons and found these on ebay and was wondering if anybody has used or heard of these.
http://cgi.ebay.com.au/Suzuki-hayabusa-G...255583879f&_trksid=p3286.c0.m14&_trkparms=65%3A1%7C66%3A2%7C39%3A1%7C293%3A2%7C294%3A50

or these

http://cgi.ebay.com.au/carbon-fibre-suzu...3353f54677&_trksid=p3286.c0.m14&_trkparms=65%3A1%7C66%3A2%7C39%3A1%7C293%3A3%7C294%3A50

or these

http://cgi.ebay.com.au/Suzuki-GSX1300R-H...23021a12db&_trksid=p3286.c0.m14&_trkparms=65%3A1%7C66%3A2%7C39%3A1%7C293%3A3%7C294%3A50