This car is one of 820 with this engine tranny combo, I would not jack my 94 five speed up by doing something like that and I kinda doubt that Mr. CaifanSC will. These cars came with a cold air intake from the factory.
Aha! Now I get your user name
You would be correct. I wish I could get the supercharger sound from a metal intake system (the MAC is by far my favorite), but I'm going to sacrifice the sound for an OEM look. As you can see in my pic I was able to source an OEM air box & intake hose (correct F4XX part numbers) with the original "SC" sticker. That's going to get cleaned up, remove the K&N sticker and put back in the car with a motorcraft air filter.
As 820 mentioned, technically the stock intake is a "cold air" system as it picks up air from under the car and not from the engine bay. That's good enough for me .