Find a Pre-Filter for the cold air intake on your 2016-2022 Chevy 2.8L Duramax. Find the right pre-filter for your intake system by matching up your filter part number, or by using the filter dimensions. Shop from brands like AFE, K&N Engineering, S&B, Banks, and others at XDP and find the perfect pre-filter for your air filter. Pre-filters feature a breathable construction with a free-flowing material that allow your filter to breathe while blocking out large debris and contaminants. A pre-filter installs tightly over your air filter and serves as the first line of defense to keep larger debris out of your filter media and help extend cleaning intervals.