just wondering what u guys think of these products. im contimplating one or the other. i really dont want to stack, i just want around 550-600 hp. i plan on running f1 injectors, glacier diesel fuel system, one of the power boxes, clutch, turbo (anyideas on that would be nice to, twins or single?) pros and cons would be nice. im leaning towards the smarty for tire calibration. any input from you guys would be great.