Hey drew. It's a 2.5" exhaust, extractors, high flow cat with 2 mufflers. Was a seller off eBay, an exhaust mob in Ringwood Victoria. Can't seem to find them now, then again I haven't exactly been trying to find exhausts lately... But has done a lot in terms of power gains, sounds tough, all the good things. Just need to trim the exhaust tip as I think it's huge!