Upgrading turbos on a 1jz
 

I know in aspect of things being to good to be true but I am looking at droping some money into my 1jz already and I saw this turbo kit on ebay http://cgi.ebay.com/ebaymotors/SUPRA...QQcmdZViewItem
Looks like a good deal but I havent heard much about this turbo and didnt know if anyone knew about it. I know I will need a better fuel system and I am gonna run a dual walboro setup already got all of this ready to put on. The injectors I will use are 1000cc HKS I got from a good mark 4 friend of mine I know I just have to add the 7M resistor back in. I was also looking into dual ct26 turbos but havent dealt with them much either but 935motorsports has a exhaust manifold for it. I am looking for 650 to 700 horsepower I have all the electronics that I need just wondering if this turbo setup or the dual ct26's will get me where I need to get.

Ok I was mistaken the twin turbo manifolds are for two GT25 turbines not the ct26. Anyways no help??