Pre-Filters help to prevent sand, mud, and dirt, from contaminating the air filter in your 2006-2007 Chevy/GMC 6.6L LLY/LBZ Duramax. Finding the right pre-filter for your intake can be done by matching up filter dimensions or by using the corresponding filter part number. Pre-filters feature a breathable construction with a free-flowing material that lets air through while blocking larger contaminants. A pre-filter provides your vehicles engine, air intake system, and air filter with the protection it needs from large airborne contaminants while also helping to extend cleaning intervals. Pre-filters from AFE, K&N Engineering, Banks, and others are all available at XDP.
