I got some engine paint in like a silver/aluminum color. I believe its up to 600F. That should work fine. You would want high temp so the heat doesn't crack the paint but some have to be cured by being baked in a non-food oven. So that would not work, read the labels before you buy. Got mine at walmart for like 3 bucks, autostores have it too. Be sure not to touch the bulbs and if you do clean them with rubbing alcohol.
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'93 325i 5 Speed
-2 12" MTX subs
-16" Double Spoke Rims
-OEM Clear Corners and Tails