How nwill you outgrow nistune, when the japs have been using th esame principle to make 1000hp. For the cost of the vipec, which is totally overkill for your setup, i would go nistune, buy your own wideband and have a crack. Or go nistune and take it to sydney/canberra. If your guy cant tune nistune then i wouldnt trust him with your car even if its a vipec. Remember even with the vipec it could still run like crap, as its only as good as the tune.