www.86garage.com

Looking specifically in the houston area for pick up. OEM gt-s rear sway bar and hardware.

In case you wish to get it from Japan, then you can check here

http://tomochandru.ocnk.net/product/1205" onclick="window.open(this.href);return false;
This is made of Aluminum with the mount made of steel.

FYI, an All aluminum rear sway bar is also available.

(Blog: http://tomochanstore.blogspot.in/" onclick="window.open(this.href);return false;
Forum: http://tomochanstore.prophpbb.com/" onclick="window.open(this.href);return false;
Web shop: http://tomochandru.ocnk.net/" onclick="window.open(this.href);return false;)

That's a nice rear strut tower bar. Actually, @Warren was able to get a hold of a factory GTS rear sway bar since his initial posting. Thanks @Chandru71.