Finishing off the LED rear (high mount brake, rear wing spoiler, reverse indicators, and tail lights) I've added the Platinum Amber 7W High Power 20 LED Parking/Turn Signal 7440 744320PA bulbs from VLeds. At $80 per pair the bulbs are crazy expensive for signal bulbs but they are the only LED bulbs that are highly visible during direct sunlight. Used in-line socket resistors to avoid the heat problems of the more common exposed tap-resistor setup. Unfortunately the same setup does not work on the front because the signals share the same circuit as the driving lights, so front signals must remain incandescent for now.