CAI.... Just the CAI

I'm planning on getting either the TRD CAI or TRD short-shifter with any Christmas funds that may be coming my way. I'm aware there are other brands, but at the moment i've got a sibling working in the service department of my local Toyota dealership who has told me he will slap on anything TRD I bring in for next to nothing.

My question: I'm not planning on getting exhaust or headers anytime soon. Will having just a CAI sound like total crap without the upgraded exhaust system (at idle or accelerating)?

I had an '04 Spec-V previously and I loved the sound the CAI made. Both when you first hit the gas and then at WOT. I then got my catback and drove around for a week backfiring occasionally until my headers arrived. After that the car was just loud (but fun).

I remember hearing about people talking on forums about certain cars exhaust sounding like a swarm of angry bees when the right flow didn't exist. I don't remember that being an issue with the CAI on my Spec-V, but I definitely don't want that. Anyone who has just a CAI (TRD or otherwise) with no catback/headers have an opinion one way or another?

Thanks.

-Doomy