Fleece Performance 04.5-07 GM Duramax 6.6L LLY / LBZ GM All Lights On - FPE-GM-ALO-37

Brighten up your driving experience with this simple upgrade inside your fuse box. Simply install the GM All Lights On Module to allow your high-beams, low-beams and fog lamps to simultaneously illuminate the road ahead. Once installed the GM All Lights O
Installation Instructions