Quick update on my progress with the LED's and coding this evening. LED's are from
http://www.superbrightleds.com,
1156 LED bulb, single intensity 45 SMD LED tower (amber 1156-A45-T, red 1156-R45-T).
I wanted a good comparison and installed the new LED modules on the right side of the car only (front turn, rear turn, brake light). I then coded the right side to disable warm checks, cold checks and enable LED mode. Fired everything up and did some checks. Here's what I came up with:
Front turn signals
As other mentioned, you need to file off one of the pins (it's a colored bulb and the pins are at about 150 degree angle (no modification needed for rear sockets)). The amber intensity is different compared to the incandescent. Whining the lights off the fence at night and incandescent one appears to have a more focused beam than LED. However, when looking head on at the turn signal the lens looks like the intensity is more dispersed throughout the lens. The parking light level is 50% intensity, so it does respond to that fine. I want to so some more testing from a distance and definitely during the day.
Rear turn signals
This one was a little odd a first. I simply hit the hazard light switch. At first the LED was flickering a bit, but then it stabilized. Could be the connection was not seated perfectly at first or something. After that is was totally stable and solid. I will keep an eye on this. The intensity is not quite as bright as I expected, but the incandescent one is not that bright either. Also remember this is an amber LED being filtered by a red lens, so that kills some of the intensity. I was impressed that the result is very much an amber color which I like. It's still quite noticeable with the instant on characteristic of LED's. So far, so good.
Brake lights
These look pretty nice and look just as intense as the incandescent versions. It also looks like a deeper red which I think looks nice. This is most likely because I'm using a red LED in a red filter which means all of the light gets out (unlike white incandescents). Very pleased with this particular one.
I will take some video this evening at night and another one tomorrow during the day before I fit the left side of the car with the LED's as well to give a good side-by-side comparison. The instant-on nature of LED's is very apparent and almost makes it look like it's out of sync with the incandescent side.