I appreciate your honest response, but prior to purchasing my xcal3 I spoke to a number of tuning shops and was quoted $1600-$1700 for box & tune.it was around 1k for the box and the rest was taken up in the custom tuning, so no problems there. now after purchasing a xcal3 independent to a tuning shop and running around with a generic tune for the last 6 weeks or so I thought it was time to get a custom tune and now after speaking to the same tuning houses the costs have now suddenly risen to nearly 1k which is ott. kartman are you a melb based tuning shop, if so, can you send me a pm with your contact details. also what gains have you seen when custom tuning my type of vehicle, not so much outright kw's but more about throttle and driving responses. thanks