Hi Powers1 , yes the original BMW stainless exhaust manifold from the dealer was around the aus $1400 .The cast unit from the UK cost me aus $350 plus another $90 for freight and it arrived the same week.There is a company selling the cast units here in Aus but it looks the exact same manifold as the unit I purchased from the UK ,from memory they were selling them for around the $800 mark.If I am after anything worth a few $$ and I am not in a hurry for it I generally purchase it from OS, it works out a lot cheaper even with the freight.
The manifold changeout would have been a lot easier if I had a hoist ,I drove the car onto some 150mm blocks to get it that little bit higher, wasnt a bad job to do.I replaced the turbo at the same time as it was showing some seal leakage indicated by oil weeping out from the intercooler piping.