We call that the James Bond Q tune.Unless you plan on turning the car into a submarine there is nothing to worry about
Uhm, but this really isn't true is it?most CAI for Supra are not CAI
Well yes and no. CAI, Cold Air Intake it supposed to intake cold, preferably coldest and obviously not the hot air within the engine compartment and to a point not forced air. Some cars intake air from wheel well, some behind the headlight some between the headlights with ducting, etc.. For sure you can use the intake without it's cover but it'll ever so slightly increase the intake temp, IAT...Uhm, but this really isn't true is it?
A CAI simply needs to pull air from outside the engine compartment. The OEM intake does this with a plastic pipe from behind the headlight to the airbox. Most CAI kits use this or "upgrade" this. A CAI doesn't necessarily have to pull from a huge hole in the front of the car like for the radiator. It's just a bit of marketing to say "wow look how much air we can pull in from down here"
Because the OP is new, I feel it's important to point out that all the after market CAIs are essentially expensive kazoos. The stock car is not limited by the amount of air it can suck in so any improvement in performance is placebo at best. Only real impact is more turboy sounds.