bought one, cost A$650 land in sydney. the reason i bought one was this is a plug & play 'digital' unit. i was told some chip units ( like dtronic) which need to be wired to the fuel pump are not digital mapped. in fact, i can get those cheap no digital chip lots more cheaper. but for the peach of mind i get this one. i will try to install it this Saturday. will provide some update later. i still dont understand why things in australia can get so expensive. i was in europe where performance chips can be really cheap to buy especially for those popular cars.