Hi Scott, and welcome to the TDR.
I have said this several times, and I'll say it again for your information. This is my opinion, shared by some, but not necessarily by all. Bottom line, you need to evaluate all the advice, and then all the various products you are interested in, then make up your own mind.
There are several levels of enhancing our trucks, from very mild (like small injectors) through extreme (injectors, NoS, propane, fueling boxes,... . ). Everyone's needs are different, and what is right or best for someone else isn't always the best route for you to take.
There are many local TDR events all around the country. Best to attend a few, or at least get in touch with a few guys near you with various BOMBs (BOMB = Better Off Modified Baby!) and ask to ride in/drive their trucks to feel for yourself what each BOMB does for the truck. Most of us would gladly let you ride or drive our trucks for the experience.
Now for my advice:
Carefully evaluate what your needs/wants are before you start any serious (expensive) BOMBing. Some people start small, say smaller injectors, or light fueling boxes, etc. , then decide they want more power (be careful, BOMBing is an extremely infectious disease, and once you are infected, it likely will spread very fast and there is no cure

), and then those smaller injectors are swapped out for bigger ones. In this way, you upgrade piecemeal, and go through expensive partial increases to get top where you want to end up. In my case, I decided I wanted as much

factor as I could get without going fully insane, so I started right away with the Diesel Dynamics stage 3 injectors, which at that time were basically the largest injectors available anywhere. They were of course a little more expensive than the stage 1 or 2's, or the 275 RV injectors, but I personally wanted to go as far as I could right from the start.
Not everyone wants or needs to follow that example, so keep that in mind also. I just wanted to point that out, to possibly keep you from spending too much money in piecemeal upgrades.
There are several TDR folks and advertisers that are great sources for things like injectors, and some companies give TDR member discounts. One of the best sources for things like injectors and fueling boxes is a TDR member called HVAC who runs
www.performancediesel.net
Whatever you do, you will really enjoy your Cummins, even stock they are just incredible engines.
Tom