Gauges gauges gauges, get them before anything else. How do you know what your truck is doing if you can't accurately monitor it. I am currently running the edge juice w/attitude monitor, I got a smokin deal from a buddy at the time but I spun the stock clutch like nothing so installed a southbend clutch holds like champ, of course the OEM clutch was already a little wore out I've had both now for 2 years now and no problems. I like the ability to adjust on the Fly that way i dont have to stop, program, cycle key, close one eye, rub stomach and repeat until you hear a chime, so. I dont have injectors or an aftermarket turbo, waiting until after the warranty I have heard the Smarty doesnt play well with the Edge Juice so if you stack be careful. However, if I was to start fresh I would probably run a Smarty based on all the positive feedback, even if your motor is near stock. If you plan ahead and do your research, you will only have to buy once and build into the things you already have, just my .02