Im from Wollongong area and the extractors are hurricaine extractors.
I did crack them at one stage and I had them fixed up.
I honestly did not notice any loss in performance after they were fixed.
If you guys want or need anuthing youll have to tell me exactly what it is. I got shit loads of stuff from the halfcut left over and from the 7AFE. And to make things worse I dont know alot about cars so you guys would have to let me know what part it is and tell me what the hell it looks like or even post me a pic.