Anyone use LED bulbs for the running lights? Seems like a way to have a brighter daytime running lights. What do you all think?

 

I use them in the back side markers because regular bulbs were a little too pink for me.

There are drop in bulbs for what you are looking for. They are brighter but the light dispersion is not as uniform. I don't think it will have the impact you are looking for. Someone that knows bulbs better than me may be able to offer a higher wattage traditional bulb, but then melting your housings becomes a concern.

 

I am sure they are available. You can replace every bulb in your car with an LED drop in almost...

 

The stock DRL/turn signal bulbs are 3157NA (natural amber) which put out 24 candlepower - the clear version puts out 32 CP. You can replace with a 3357NA to get 30 CP without generating enough heat to damage the lens - that's a 25% increase in brightness.

Replacing with an LED bulb can get you more light intensity but less spread (you'll see a distinct spot where the bulb is rather than the whole lens lighting up). You will have to replace your turn signal flasher with an electronic one because the LEDs don't draw enough current to make the stock thermal flasher work.