What do you mean send my PCM back?
If I order this piece will I be without us even of my truck until the PCM's come in?
I have to get the PCM with the tuner? I can't just use the tuner of my stock PCM?

I am interested in purchasing TRINITY + PCM SWAP, DODGE TRUCK 2015+ (5.7 8SPEED) - T1003 for my 2015 Ram 1500 with the aforementioned engine and transmission. I have tried calling Diablo 3 times and I never can get someone on the phone.

Will I need to purchase anything else to use this tuner ...