Thanks for all the advice and quotes. Unfortunately I missed the auction due to being on night shift.
FYI it was a full SS exhaust new in box never used for just over A$1200. Same system is hard to find used at the price here in AUS. So yes, I was aware I'd most likely have to pay GST unless the seller would send in two separate transactions, but then shipping cost would be higher on two separate deliveries. Gotta love GST, can't wait till it hits 15% so our polies can tell us to tighten our belts more.
Hey Macka, last time I was overseas, they only thing I stuffed in my suitcase was a penguin!!