Compatible Models: 2003-2006 GMC Sierra 1500 2500 3500 2500HD 3500HD, 2007 GMC Sierra Classic. [NOTE: Not fit for denali / C3 models]. Provides brighter, whiter light than standard halogen bulbs. Plug and Play: The installation process is designed to be quick and easy, taking about 15 -20 minutes and requiring no modifications to the vehicle.
