Not necessarily. Pretty much any intake that's been opened up will let you hear the whine. It's just the stock system does a good job of hiding the sound.

If you just want to hear the whine and aren't too concerned with power increases, something like the code3 intake (out of production?) works fine. It's essentially a modification to the stock system and screws into the Y near the throttle body. If you can't find one, it's very easy to make something similar. The sound is very pronounced with this type of modification to the stock system.