I call them all hot air intakes. But regardless of that, those conical filters add nothing for performance. Your restriction is in the turbochargers themselves and the catalytic converters. I can max out the stock turbos using a dirty factory paper air filter. It has been scientifically demonstrated that the K&N style filters can yield a decrease in pressure drop over paper by at most 0.1-0.2 psi, and that's nothing at all. A few SHO owners dyno'd their tuned SHO's without air intakes at all and noted 1-3 whp variations which is subject to dyno errors etc... You're not going to feel 10 whp on the track let alone 1-3 whp.
The 2020 GT500 just came out and sure enough a bunch of vendors are releasing gigantic hot air intakes or conical filters stuffed in a sealed box, and noting something like 47 whp / 5 wtq gains... but this is with a massive supercharger on a bigger V8 engine and the hood propped open in a temperature controlled shop room environment. And only 5 wtq gains is hardly worth mentioning. Take that to a track with massive heat soaking opportunities and you won't see much gains from that intake. Most of the time these hot air intake vendors are smart and they advertise dyno gains WITH a tune, so you can't really see which yielded the most (it's the tune) or the gains were observed in a temp controlled environment with the hood propped open. Keep in mind our 2.7s are rather small displacement V6 engines equipped with very small turbochargers. The Ford GT supercar runs a pair of our stock factory paper air filters because each of those turbos max out at about the same as both our turbos maxed out. I did my own testing with a bunch of different types of filters on the SHO, and different intakes/filters on my Mustang GT and observed that removing the cats would yield about a 40+ hp gain even N/A.
