I couldn't find a "kit" where you get all you need with one swipe of the credit card.
I spent some time on the Cummins forum, read a bit, asked a few questions and got an idea of what was needed.
I have a 2017 CTD and here is my delete, tunes, exhaust and transmission upgrade mod list:
Delete & Tune mods
Edge CTS-2 Insight monitor with Cummins unlock
13 – 17 EFI Live Dodge CSP4 tune package by PPEI / Kory Willis
13 – 17 EFI Live Dodge transmission tuning
Cummins tuning switch CSP4
EGR valve and cooler removal with block off plate
Throttle valve delete
Edge expandable EGT probe kit
Pillar pod mount for Edge CTS2
Transmission mods
BD Diesel 68RFE valve body plate kit
Mag Hytec deep transmission pan
ATS 68RFE transmission case support brace
Exhaust Upgrade
FloPro 4“ cat & DPF cannister delete pipe
4” – 6” black exhaust tip with rolled edge
Corsa 8004002 4” muffler – placed just downstream of down pipe
The truck runs awesome, no CELs - which I kept getting with the OEM systems in place - since the install, HWY fuel mileage improved - not so much around town - depending on how fast I am driving or what load I am hauling/towing, and all around the truck is much more responsive and fun to drive.