Description: MAXIMUM PERFORMANCE Our cold air intake for the 2003-2007 Ford Powerstroke 6.0L was engineered to minimize air restriction and flows 36.82% better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat. EVEN MORE DESIGN IMPROVEMENTS. S&B’s one piece box design features an integrated box seal with a relocated filter minder location. COOLER AIR. MORE DENSITY. Our oversized snorkel with lip engulfs more cold air. The cooler the air, the greater the density, resulting in better performance. SILICONE FILTERS AND COUPLERS Silicone is a premium rubber which will seal better and last longer. It handles as much as 400F without cracking or tearing. With a high friction surface and no oily residue, our silicone filters and couplers won’t slide off the tube. HUGE SILICONE LID FUNNEL. We added a silicone lid funnel to isolate the engine heat while tunneling more to your engine. The funnel attaches to the top of the air box and is easily interchangeable with our signature clear lid.