Bring the power back to your 7.3L! This Stage 2 air intake system produced 15hp and 32lbs. x ft. of torque on the dyno and outflowed the factory intake system by 51%!Â This system utilizes a one-piece powder coated wrinkle black housing that mounts to the factory lower intake box, CAD designed tube for optimum air flow, large 4" diameter 360 degree PROÂ Dry SÂ air filter for maximum convenience. This ia 100% bolt-on product that requires no cutting or drilling and this system comes with all hardware, couplers and components for an easy installation. Â Oil-free 2-layer synthetic media Increased air flow upto 50% for better performance Increases horsepower & torque Improces Fuel economy 99.4% efficient** for excellent protection Wire mesh for structural integrity & quality Convenient quick & easy cleaning Advanced FLOW engineering offers you a better choice of oil-free filters: New Pro Dry S synthetic dry-media filters. Pro Dry S filters use a revolutionary two-ply synthetic material that is functionally superior to traditional paper media and single-ply synthetic, and easy to service. Pro Dry S dry-media filters increase airflow providing improved horsepower, torque, and fuel economy with 99.4%* filtration efficiency. Perhaps the greatest benefit of new Pro Dry S filters is the convenience of servicing these oil-free filters. To clean a Pro Dry S filter lightly tap it on the ground, vacuum it, or wash with soap and water. Solvents and oiling are not necessary. Â Replacement Pro Dry S filters for all air intake systems are also available and sold individually. 2-LAYER SYNTHETIC CONSTRUCTION FOR MAXIMUM AIRFLOW AND DUST-HOLDING CAPACITY 1. Outer screen provides strength and prevents damage to filter media. 2. Thick layer slows air velocity so dust particles fall out of suspension and become trapped in fabric fibers. 3. High efficiency thin layer traps remaining dust particles without slowing airflow. 4. Inner screen provides support and quality without the need for additional internal structures. Three cleaning options: **Cumulative efficiency test per SAE J726 - Coarse Dust test procedure using 21-40035 air filter. CA Residents: CARB E.O. Number on file - LEGAL for use in California.