E46-R Extended Universal if your vehicle has a

if your vehicle has a can-bus system or a finicky pulsed headlight circuit - check out the Standalone Canbus or Mopar Spec harnesses from Morimoto Fail-Safe: Unlike most generic harnesses out there that rely on a single low-quality relay to power both headlights

With high-powered Osram LED's

adjustability

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NOTE: Note that these will NOT work with vehicles that have DRL's (Daytime Running Lamps) on their low beam circuit due to the pulsed low voltage current

E46-R Extended Universal if your vehicle has aE46 R Extended: An extended version of the original E46 R shroud, for those who believe that size does matter. Inspired by the BMW E46, enhanced for retrofitters. Compared to the standard E46 R, The "Extended" version is 10mm taller in overall height and has the dimples arrayed around it's face in a full circle. In Comparison: Don't make the mistake of thinking all shrouds are created equal. Even though less expensive alternatives may be available