extractors question

[Nervegas]

does any1 know where to buy some extractors for a f22b3 (non-vtec) in australia and roughly what price i'd be looking at. atm i'm looking to headers for about $380 delievered but have been told to look for extractors instead as they are better tuned or something.
all help appreciated on this one

[aDe]

probably try xforce they quite good ones