Swap out the dirty factory air filter in your 2007.5-2018 Dodge Ram 6.7L Diesel with a high-quality Drop-In Air Filter. Factory-style drop-in air filters typically feature a paper filter media, while aftermarket performance filters use an oiled cotton-gauze media, or a synthetic dry media. Air Filters provide your engine with clean air by trapping harmful contaminants such as dust and debris before entering the intake. Replace the factory air filter on your vehicle with a quality drop-in air filter from S&B Filters, AFE, K&N Engineering, and others at XDP. A drop-in air filter is named after the simple installation procedure as it simply drops into the factory airbox in most applications.