The D.A.S. utilizes a large inlet to guide cool ambient air from the front grill directly into your intake system. This design, alongside the high-performance aFe POWER Pro DRY S drop-in filter, boosts your vehicle's performance and sharpens throttle response, allowing you to fully unlock your vehicle's potential. This D.A.S. PLUS is constructed from high-quality linear low-density polyethylene (LLDPE) that is impact resistant, extremely durable, and 100% recyclable. This filter features three layers of oil-free synthetic media and requires no oil during maintenance to provide maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity. This media is best suited for street use. Pro DRY S filters are easily recharged with aFe's POWER CLEANER. Click here for more information about our filter media. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity.