After reading a TON of info, I ended up with Spartan
I got the special deal (3 tunes, + one race tun, FloPro full delete exhaust and AFE Stage II)
I got the DashDaq - 75, 150, 210, 275 - FLoPro 4" full stainless exhaust - AFE Stage II dropped at my garage door for a bit under $2100 (this includes the shipping price)
I have seen a +4 MPG in average mileage, I have yet to tow. Truck runs great and I am completely satisfied...
I have ordered a Aero 4040LX Resonated muffler to add into the straight pipe exhaust. I know with towing my camper I am going to get a drone and that will take care of it. I had a ton of wood pellets in the bed loaded with the 275 tune and I did not even know I had a ton in the bed. I did get some drone sound in the cab, but again the muffler will kill that.
I did have questions and called Spartan
after my install. It took them a day to get back to me, but they are a small operation and are extremely busy. After I spoke with Matt he took the time and answered ALL my questions. I hung up the phone feeling like I spoke with a long-time friend, very personable and thorough in his explanations.
All in all, I am EXTREMELY satisfied with my purchase!