Best source for VZ CV8 Monaro Headers?

[Boggie]

Hi All,

I am looking to get my LS1 breathing more freely but I am on a budget. I have a Wortec cat-back big bore exhaust but it's mounted on standard headers and cats. I want to replace the headers and cats with performance versions so I would be very grateful for any suggestions on what to get and where to buy.

I have also been looking at US sites, do any of you know if left hand drive and right hand drive car headers / cats are the same?

Cheers,
B