I got the
signal mirror kit. Only "draw-back" is you loose the dimmer option. But they're really cool! Oh yeah, because the signal mirror miss the black plastic rim, which the OEM mirror have, I used black (soft) door edge around the signal mirrors (w/o loosing any significant area).
And also watch out, when braking, while mirrors are flipped in. This causes "red-zone-district" lighting inside the truck!