Can I change out the daytime running light on a GS 4 ?? If so what are some bulbs and the models?? THANKS

 

If you are saying that you plan to change out your DRLs for better looks of the lights (i.e. whiter or bluer), it won't make any difference since the DRLs are designed to emit 50% of the light wattage.

 

i agree. if the drl is running high beam at 50% (that's the case on most of the cars), then you are out of luck, unless you put a 100w bulb in the housing (spec is 55w i think). but in that case if you try to turn on the high beam y ou will see some smoke coming out too