I will try to keep it short. Based on my 2013 5.0 and yes, I have tried the canned tune:
Not worth it on a stock coyote.
Long tubes did not need a tune change. Fuel trims swing a bit more, but the car runs fine with LTs and no tune. Can be tuned to reduce the swing.
Most tune stock coyotes for the silly shit, fake cam sound, popping on decel, etc. (Ricer shit lol)
The only real reason on a stock car I see is if you changed gears or taller tires, you can correct the speedo.
Without the software to write a tune, thats all a tuner is good for on a stock vehicle.
CAI does nothing for performance on a coyote, just makes whooshing sounds, and increase intake noise. Think "sound tube"
Tuning for 93 does nothing for a coyote, they adjust for the fuel based on the knock sensors. I am currently running SCT's 93 octane value file. I can run 87 just fine, PCM adjusts as needed.