just put one LED in (without a resistor yet) and here's the difference.
LED on Left
brake on

brake off

There is a glare on the LED tail light, but he LED is still not quite as bright. I'll take some pics in the dark and put em up later
I am using this LED:

Note: I've read that you must use RED LEDs for brake lights b/c the tail light lenses only let light from the red spectrum through and white LEDs dont produce much light in the red spectrum.

I shut the garage door and took some close-ups, and obviously this is not an issue for Liberties b/c I have the white LED in there and it looks pretty sweet compared to the one with the regular bulb
brake on

anyone have a resistor suggestion?