2004.5-2005 GM 6.6L DURAMAX LLY PART #: VP15966 The Volant 15966 Air Intake System is the best in filtration and performance for your 2004.5-2005 GM 6.6L Duramax LLY Pickup. With its engineered filter box this intake system will be insulated from the hot air in your engine compartment. The specially placed air ducts are designed for less restriction and a smooth transition for filtered air to reach your turbo. This allows for maximum horsepower and incredible throttle response. Stainless steel hardware coupled with durable silicone connectors will ensure this intake system lasts the lifetime of your truck. The Volant Primo air filter included in this kit adds the best filtration possible without sacrificing airflow. The efficiency on this media was also tested through ISO standard and destroyed the dry filtration filters. This combination of features has opened up Volant and your truck to the next level. FEATURES: Washable & Reusable Filter Specially Designed Airbox For Enhanced Flow Additional Scoop For Increased Airflow Available Separately (See Below) CA Residents: CARB E.O. Number on file - LEGAL for use in California.