Elite Series Fog Lamps for 2010-2014 Subaru Legacy Color:Yellow (3000K) which means they also can

which means they also can work on a lot of stock headlight housings too

SAE/DOT Compliance: Our Ford Super Duty Nova-series projector headlights are compliant with SAE and DOT FMVSS108 regulations

That's what it's designed for

this design ensures that the output will be maximized through a combination of reflected light (from your housing) and projected light (from the bulb itself)

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Elite Series Fog Lamps for 2010-2014 Subaru Legacy Color:Yellow (3000K) which means they also canFeatures High performance OEM grade replacement compatible with Subaru Legacy Custom engineered optic provides extremely wide intense light output Distinctive integrated amber backlight Road legal fog light SAE F3 compliant Plug and play no modification needed Engineered and assembled in USA Overview Introducing the Elite Series Fog Lamps: the first OE style fog lights that were designed for true performance. With a custom engineered patent pending