XR6 VCT exhaust systems, and options

[LukeyST]

Gday,

Firstly, just wondering whether the exhaust on my VCT is correct. It goes from single cat to single muffler, then splits to twin system going through two large mufflers just in front of the IRS, then i thought it merged back to the single final muffler. But looking under the car this morning i discovered that only one of the pipes goes through the last muffler and out the back, the other pipe passes the muffler and kicks to the side and terminates, its just plugged off : It all looks factory so im assuming thats just how they were. The only reason i can see they made it like that was too make it quitter (larger volume, but has single tip). I've never seen anything like it before.

Secondly, what are my best options with an aftermarket system? From what i can find on the net theres a few different options including single-twin 2.25" systems and single 2.5" systems. The car came with stainless x-force extractors aswell, so i will be mating the system to them.

I know that the single 2.5" is a good option for a I6 with solid rear end, but im not sure about the VCT and IRS exhausts

Cheers,
Luke