I have two packages of red 3157 LEDs and a package of amber 194As. Is it really worth the time to replace the stock bulbs with them (brighter, look better ect...)? If so, I'll pick up some more and replace all (or most) of the exterior bulbs. But if it's hardly noticeable, not much brighter, then I'll leave them alone. I've seen vehicles with LEDs from the factory and those do look good!