+1 for Import Monster, always heaps of stuff on there like these;

* STi - http://www.importmonster.com.au/view?ur … ;title=STI

* Prova - http://www.importmonster.com.au/view?ur … amp;title=

* HKS - http://www.importmonster.com.au/view?ur … 0BLE%20HKS

* STi GeNome - http://www.importmonster.com.au/view?ur … amp;title=

I've got abit of stuff from japanparts too, they are pretty good, if you can get an intial reply within a week.... I've only bought a few smaller things and they have shown up in 3 days to my door. A few of the things thou, i've had to find the part numbers, and they couldn't be fu%^ed looking for me, but whatever they list is spot-on.

Also, if you buy anything from japanparts, say your a member of the NASIOC forums (even if you aren't) and you get 10% off.

Edit - JDM cars are basically the same as ours too, so the Import Monster or japanparts mufflers will be fine, you'll just need new gaskets.