okay, so here's my dilemma. i've got the MK4 style headlights, but i don't have any of the paperwork that came with them, and i need to know what type of bulb the middle one is. i've tried looking on the bulb itself but none of the numbers lead me anywhere. the reason i ask is because i want to put a blue bulb in there. this leads me to my next question. i may set up the middle light as a city light, or maybe a turn signal. has anyone done this with a colored bulb? do you know if it's DOT approved? i'd hate to get pulled over for having a blue turn signal. i hope this makes sense! thanks!
Blue is illegal as said above, if you do anything other than Yellow or amber, it's illegal, you can get away with White usually. Running lights can be white to amber like citylights, fogs, etc, but Turn indicators have to be Amber or yellow in most states.
The bulb is a 168 I think, but I have a pair of Blue 194s in mine (same bulb basically) Looks tight, but only on when not driving.
So 168 or 194 will fit.
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