does the KB kits come with everythign possibly needed to install and run? will i have to take it and get a chip in it? or does KB send youa chip already? if they do how safe is the tune on it? If i do buy the kit i really cant afford right now to go and spend a few more hundred on another chip so if the original will last for a few months that is fie with me.. just wondering if i bought the kit if that was all i needed and didnt have to buy anythign else along the way?