Hi, I bout my B4 a few months ago and I've done some scrounging online to discover that a reflash is recommended as it will eliminate knocking/gain 20-30KW. But I've also heard that it needs to be done by a person experienced with the B4's engine as a bad tune WILL kill the engine.

Now, I just really don't know who to go to; people tell me that EcuTek is the only option and other people tell me that EcuTek will wreck my engine and with Perth being such an isolated little corner of nothingness we don't really have the option that people overseas have.

Tl;dr: Are there any persons/companies in Perth that are 100% competent with reflashing the B4 and how much will it cost?