well i got my ute with the extractors on so i cant compare. they sound awsome though with the exhaust. i dont think it would make much power difference by just doing the extractors - but with head done and some performance type of intake it would all compliment each other - it all helps to flow much better and more efficientley.

and im also a yapee but comverted to australian.. ha! i left when i was six so im all aussie pretty much. yeah the Nissan 1400 bakkie champ hey! must say you should ship over some 5speed boxes and some boerewors - and mrs balls chutney along with it.