Difference between VY S1 &S2 v6 exhaust

[Jezza]

Hey Mate the Series 1 have 1 Cat and 1 muffler. And are 100mm shorter on the top end of where the bolt onto the headers, than the series 2.
Not all series 2 come out with twin cats either.

I'm aware not all come with twin cats because i had a series 2 VY which had a single exhaust(october 03 build so very early series 2) and I eventually fitted a aftermarket twin system to it

Edit: Jesus i didnt realize this was a thread dig from my own thread from 2010. I'd end up purchasing a normal series 1 catback originally and then replacing it with a far better exhaust from a member on hear who i dont believe sells them anymore