Please help me out i need some advice i want to buy a bluefin superchip for my BMW 330D M SPORT COUPE 07 PLATE. the questions i need answering are aA. is the going to cause problems mechanically , my friends all say that the car isnt designed for it and it will basically make the car break as the car hasnt been designed for the extra power and that is how BMW tuned it for a reason. I have spoken to a local tuning shop and they said that it has already basically been designed by BMW they just hold back the upgrade for later editions of the car as all they do is change the tuning of the computer every time they release a new model instead of building a new engine . I really would like the extra power but really cant afford the costs of repairs if im going to cause problems later on down the line. Please help !!!!!!!!!!!!!!