Decided to get my DPF, DEF and EGR Deleted in my truck, currently in the middle of putting the new exhaust back on. I just have a few noob questions. First off, will doing all 3 deletes at once have a negative effect on my truck? Second, when everything is put back together and deleted, Will my truck throw codes/go limp mode until I get the PCU Def codes written off? Third, I have a Bully Dog GT Diesel Tuner, will the stock tune that comes preloaded on the SD card write off my egr and def sensors? if not, would anyone know where I can get one if my tuner can do that at all. Anything helps!