With their surface-mounted stainless steel bolts and massive presence, Boss Pocket Style Fender Flares are a Bushwacker exclusive. Despite their aggressive bolt-on styling, Boss Pocket Style Fender Flares install in minutes, with no body-side drilling. They're custom-designed for your truck to complement oversized tires and high-clearance lift kits. These flares are now available pre-finished to match the paint on your new truck or SUV, plus they have the edge trim and stainless steel hardware pre-installed for quick and easy installation and a perfect fit-no drilling required. Boss Pocket Style Fender Flares are made from our thick, warp-resistant Dura-Flex 2000 material, tailor-made for added durability and flexibility on the trail. When you need maximum tire coverage with minimum time and effort, it's in the pocket. Boss Pocket Style Fender Flares from Bushwacker. - Fits - 2016-2018 GMC Sierra 1500 Fleetside