Those looking to enhance their GM 2500HD/3500HD's protection and achieve a more aggressive stance, fender flares are the ideal choice. Our range of fender flares provide additional tire coverage to protect your truck's vulnerable paint from debris. Equipping a set of fender flares on your GM truck is also the perfect way to give it a wide and aggressive stance. Built to ensure durability, these fender flares install easily without the need for drilling or cutting. Combining style and functionality, fender flares are a valuable upgrade that will give your GM 2500HD/3500HD a unique, standout look. Pair your fender flares with our selection of Mud Flaps for additional protection from mud and debris. GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax.Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali.Some exceptions apply, please see individual product pages for specific fitments.