Seems to me the “best” IC really depends on what you’re using the truck for & what kinda climate/environment you’ll be using it in.
If you’re keeping it mostly stock, maybe just adding a tune & live in a more seasonal/cooler climate & aren’t pushing it all the time offroad or towing/hauling a lot the stock IC is probably fine. When (really it’s IF- depending on mileage/use) it’s time you “need” a replacement going aftermarket can be an option
Regardless of use or modding- seems if you live in a consistently hot climate & are either a) sitting in traffic a lot & doing “regular truck” stuff like hauling the fam & light towing etc or b) actually running it offroad in sand/mud long range over landing etc Even stock, would benefit from an upgraded IC, & c) those that live in a warmer climate, mod & continue to mod, & push it hard on & offroad regularly
I think better question is - if you’re going to upgrade the IC what are your intended uses, what’s the climate like, & do you care about voiding warranty. Based on experience I’ve heard and/or seen on forums etc Ford can be a b***h on warranty claims...installing an IC that involves chopping up/removing the grill shutters, relocating sensors/wiring, & wedging a giant “FMIC” that’s staring @ ya right through the grill may not be the best idea....in particular if you intend on pushing the truck hard.
Seems there are plenty of “stock location” upgraded ICs available that require little or no modifications to the stock parts. CVF, Wagner, Mishimoto, whipple etc.
I live in MA have put about 45k miles on 2 gen2 Raptors I run gearhead tune & drive aggressive on street & go offroad on logging roads/gravel roads/fields maybe 5% of my driving mileage-wise, I tow a utility trailer & waverunners on occasion 2000-5000 lbs max
I don’t see any need for an upgraded IC at this time, only in dead traffic going to cape in mid summer would I notice IATs that get high