Fits 2003–2007 6.0L Powerstroke: Designed specifically for Ford F-250, F-350, and Excursion 6.0L trucks, this intake system is a direct bolt-on upgrade with no cutting or modifications needed. Increases Airflow & Performance: Replaces the restrictive factory intake with a high-flow design to improve throttle response, turbo efficiency, and overall engine performance. 50-State Legal – CARB EO# D-721-4: Emissions compliant and legal for use in all 50 states, including California, so you can upgrade with confidence and stay street legal. No Tuning Required: Designed to work with factory engine settings—enjoy improved drivability and efficiency without needing to reprogram your truck’s ECU. Mandrel-Bent Aluminum Tubing: Constructed from smooth, mandrel-bent aluminum for unrestricted airflow and long-lasting durability in high-heat diesel engine bays. Improved Turbo Spool & Sound: Reduces turbo lag and delivers a more aggressive turbo sound under acceleration—great for daily driving or towing applications. Simple Installation: Includes all necessary hardware and installs easily with basic hand tools—no custom fabrication or special equipment required. Built for Power & Reliability: Backed by Sinister Diesel’s reputation for quality and performance, this intake is trusted by diesel owners across the country.