The S&B one-piece airbox features an integrated gasket and a new filter holder location. The oversized snorkel with S&B's lip draws in more cool air. The cooler the air, the greater its density, resulting in better performance. Silicone is a premium rubber that provides a superior seal and lasts longer. It withstands temperatures up to 400°F without cracking or tearing. With a high-friction, oil-free surface, our silicone filters and couplers won't slip off the tube. S&B has added a silicone lid funnel to insulate against engine heat while tunneling air into your engine. The funnel attaches to the top of the airbox and is easily interchangeable with our signature clear lid.