Morimoto 4P DT Pigtail Harness: (BigBanger) (18" Long) GMC ECE-compliant guarantees your lights are

ECE-compliant guarantees your lights are compliant in the European Union and in non-European countries that have adopted ECE Regulations

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these little guys are required to ensure your truck's pesky CANBUS system doesn't freak out with those slick new LED headlamps

Morimoto 4P DT Pigtail Harness: (BigBanger) (18" Long) GMC ECE-compliant guarantees your lights areExtension: This harness is designed to provide extra length to the outputs on any of the Morimoto off road LED pod relay harnesses. They are available in either a two pin version for the 1,2, or 4Banger, or a four pin version for the BigBanger. DT Standard: They are compatible with all products designed around DT (Deutsch) connections. Alternatively, you can cut the input connection off and use it as a power pigtail for your own custom wiring. OEM+: