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Since I have been so humbled by some of the guys, I can only offer what I am good at, to you all.
So, if any of you need any automotive information, or help with a problem, I have pretty extensive resources to get the information. If I don't know the answer, I have enough resources where I should be able to come up with the answer.

Don't get me wrong, I am no expert. But I do have access to a ton of resources. I may refer you to someone that can help.

There you have it. :)

Okay, first question:
2003 Intrepid, 15K. Step on brakes hard, and there's a "groaning" noise in the front end. Dealer checked brakes: calips, rotors, etc. . . says everything is hunky dory. . . . snow on roads, so they wouldn't test drive. . . said the description does not match any common 'trep problems. . .
. . . it's not a new thing. . . has always done it since new. . . but only during panic stops. . . now, it's a little more frequent. .

To me, it almost sounds like a coil spring binding. . . maybe the weight transfer of a sudden stop is compressing spring, and I'm hearing the spring?? Kinda like metal twisting, without any friction ( like scraping or grinding).

Anyhoo, like I say, dealer isn't concerned, and the brakes perform fine. . . . .

. . . any ideas?

Seth, that sounds like it is the ABS motor.
Since you said it happens during panic stops, it sounds like it is the normal operation of the ABS motor.
The ABS motor actuates under severe braking and makes a god awful noise. Most folks who aren't used to it will often be startled by the racket it makes.
If the noise is a cross between a machine gun, rattle can and cat growl, then that is it. LOL!

Seth, got to thinking. If it is happening more frequently, then is the ABS light coming on?
Try this,
Find an open road that is hardly traveled, then do a panic stop, when the noise starts, lightly lift pressure on the pedal, while still keeping pressure on the brakes and see if the noise goes away, then it is the ABS motor making the noise.

Also, tell your dealer to check his TSBs again.
There is a TSB for Brakes - Front Brakes Thumping/Knocking/Pulsation NUMBER: 05-001-03 Rev. A
If you e-mail me, I will e-mail you a copy of it.
tm @ batauto . com

OK, what is the torque setting for the piston return springs on a Henry-J? Can I use the muffler bearings from a 59 Buick on a 52 Nash? LMAO

Come on Buddha, that ain't fair at all. LOL!
You have to make sure you have special muffler bearings for that vehicle. ;)

Marla,
I have alot of info on Corvettes. ;)

Seth,
Not saying that you are wrong, but the Intrepid comes standard with ABS.
Did you specify to not have ABS when you ordered the vehicle? Let me know.

Well, it seems that the 2003 and 2004 Intrepids, the ABS is an option.
So forget everything I said. I went stupid.

Now I think that the TSB I told you about is definitely something to think about.
Did the dealer turn the rotors?
If not, then here is the info on the TSB.

A pulsation and/or thumping/popping/knocking sound may come from the front brakes when stopping. These symptoms may be caused by an uneven application of corrosion protection material to the front brake rotors during the manufacturing process. Usually the corrosion protection material unevenness is removed through normal break-in driving.

CAUTION : Drive the vehicle in an area appropriate for the maneuvers described below.

To correct the above symptom(s) for vehicles that have accumulated less than 1000 miles (1600 kilometers) ,the vehicle should be driven at 30 mph (50 kph) and the brakes applied medium hard to come to a full stop.

Drive the vehicle at 30 mph (50 kph) again for one minute to cool the brakes then apply the brakes medium hard again. Evaluate the sound/pulsation. Repeat the one minute drive and medium hard stop routine until the sound/pulsation is eliminated. If after twenty brake applications the sound/pulsation still exists, refer to the appropriate service information for front rotor refinishing procedures.