When I did my research on tyres, I just Google searched a whole range of tyre brands, followed by the word "forum). eg "Federal SS595 forum". This brings up a range of performance car forums from around the world. I couldn't find a bad word about Federal SS595, found heaps bagging Kelly, Dunlop an Falken (except their top of the range). Of course, top end Michelins and Bridgestones are good, but you pay. From my admittedly slap-dash research, I found the Federals were at least as good as Toyos, Yokos, Kumhos and Nankkangs and significantly cheaper.