just was wondering gonna have to buy one of these suckers in the next couple of days?? ive got a 2005 bf turbo, the price difference is 2=$50-500 3=$700-800 why in the most simple and basic way, explain... andddddd GO! o and probally very common question but, lets say I get the Xcal 3, and use one of the standard tunes just for a bit of fun till I can afford the custom tune.... how likely is it to kill something :S