usually with manifolds and things of that nature you get what you pay for.
there are no big name companies in australia for this sort of thing really especially for honda's. the majority of kits you can buy here will be imported and marked up heavily.
if you dont want to import prepare to either have alot of hassels with a cheap crappy australian mass produce item or pay the dollars and get a custom job done.
if you are going to buy an import item, try and go direct to cut out the middle man and save yourself heaps of cash
