Okay first of all i wanna beat a Dodge Cummins or a Duramax programmed and them things are purdy quick. But my truck has 5.3 crew cab cai, pipes, 3.73 with yukon duragrip, and tune. i called texas speed and they had a NX kit for 800 with a window switch. said it was everything i needed (150 shot). are these hard to hook up and do you guys think this will be enough? also is this a good deal and will i need anything else or is that kit gonna have all i need like they said?