HKS Super Dagger

Hi guys
 
I am just wondering if anyone here is running a HKS Super Dagger exhaust on their two?
If so would I be able to get some pictures of the bracing that runs between the two muffler boxes as I have circled in the attached picture and possibly some measurements?
I have been trying to work out from pictures online if it braced with rectangle hollow section or if it is just flat bar.
The reason for my question is on the weekend whilst under my car I noticed that my exhaust is cracking down the center of the weld in the Y pipe between the two muffler boxes so I want to fabricate a brace to go between the muffler boxes to help take some load away from the Y pipe. 
 
Thanks for any help.