1999-2007 GMC Sierra/Yukon/Yukon XL Factory Style Crystal Headlights w/ Amber Reflector & Bumper Lights (Matte Black Housing/Clear Lens) Off-Road Lights Tighten valve cover bolts in

Tighten valve cover bolts in two stages to ensure proper sealing

Provides more stability and down force during high speeds

All AeroFlowDynamics F1

Transform your K-Series engine's performance with professional-grade engineering and race-proven design

1999-2007 GMC Sierra/Yukon/Yukon XL Factory Style Crystal Headlights w/ Amber Reflector & Bumper Lights (Matte Black Housing/Clear Lens) Off-Road Lights Tighten valve cover bolts inBrand new in original box Exactly the same as seen in pictures Comes with black housing with crystal clear lens headlights & bumper lights! 4pc combo! Made by an ISO certified manufacturer using materials that meet strict OEM requirements Bulbs not included Please use stock bulbs, sockets for plug and play installation Professional installation is highly recommended Vehicle Fitment: 1999 2006 GMC Sierra 1500 2500 3500 models only 2007 GMC Sierra 1500