Its Xforce....so their reputation is pretty established. I just don't think its popular or well known here in the states. They are a huge exhaust company in Australia.
http://www.rallysportdirect.com/shop...t-back-exhaust
Just don't know of anyone running it, and there are only a few threads here about it. Overall consensus seems extremely positive.
http://www.ft86club.com/forums/showthread.php?t=20744
More info from 2012.... lol