i've actually looked into a projector rs13 headlight before. the problem is like vegita319 said. The projectos are usually very deep, the 90mm hella is around 6" deep. Thus for any projector to work you need to pull a "lazy eye" to get enough depth. Or, drill a hole into ur chassis to fit the extra depth. I'm looking into making one that drills into the chassis... when i have an extra rs13 laying around...
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