This Stage 2 XP intake for the Ford 7.3L Super Duty produced 50 max horsepower and 112lbs. x ft. of torque and out-flowed the factory intake by 200%! Shielded by a durable 16 gauge, powder-coated heat shield; this air intake system features a massive washable/reusable conical air filter that improves airflow for increased horsepower and torque. The patented heat shield/air box includes a battery relocating tray to allow for the extra large PRO Guard 7 air filter. This intake system also features a heat-insulating molded plastic tube that replaces the stock intake tract and directs increased air flow with improved volumetric efficiency for maximum performance. One-piece heat shield requires little or no assembly and the filter is constructed with 100% polyurethane for long life and multiple cleaning cycles. Dare to compare, this intake is engineered past all other intakes. If you are into serious diesel performance, you need this intake. This intake is 50-state legal for 1999.5-2003 models (CARB E.O Number D-550-1).