If one manufacturer really had the best they would take the same truck and install every competitors product and publish the results. All in all it is nearly impossible to digest and accept all the input. Good luck sorting it out
I disagree. Now, if you want to know which will squeeze that last ounce of power out, then yes, you are correct.
From my opinion, "best" translates into smooth power, good amount of power, minimal problems. Basically, overall performance of the product. If you want to squeeze that last little bit of power go EFI live and empty the piggy bank. If you want a good quality product that will run well, then you have options.
Budget oriented - Diablosport Predator. Good tuner, has nice features, like the ability to adjust the speed limiter and tire size. Best bang for buck. GET GAUGES!
Mid Range - Edge Juice/Attitude. Adjustable on the fly, good power, many features, and includes digital gauges, cool down timer, EGT and Boost limiting, ect all in one package.
Best (IMO) - PPE - If you want the truck to RUN, this is it, short of EFI live. They have several different levels of performance and each level can be upgraded to a higher level for a fee. At this point, it really comes down to budget. You can go for the lower levels and get it upgraded later.
Just realize, to see the most
from these you will want to look at an exhaust kit, intake, and possibly some transmission upgrades.
Gauges are not optional, except with the Edge, as it includes them.