aFe Power 51-74002 Momentum HD Cold Air Intake System w/ Pro DRY S Filter | 2004.5-2005 GM 6.6L Duramax LLY

• +19 HP and +33 lb-ft torque over stock
• Ensures maximum airflow with an integrated auxiliary scoop
• Filter with three-layer, oil-free synthetic media
• Premium stainless steel T-bolt clamps for secure and durable fit
• Optimized for peak power and airflow efficiency
• Designed with fewer parts for a hassle-free setup

Boost Power & Efficiency in Your Duramax

Take your 2004.5-2005 GM 6.6L Duramax LLY to the next level with the aFe Power Momentum HD Cold Air Intake System. Engineered for maximum airflow and performance, this cutting-edge intake system delivers an impressive 43% increase in airflow over the stock intake, resulting in gains of up to 19 horsepower and 33 lb-ft of torque. Not only does this system improve throttle response and acceleration, but it also enhances fuel efficiency—making it a must-have upgrade for any Duramax owner. Whether you’re towing heavy loads or just looking for more power on the road, the Momentum HD provides the perfect balance of power, protection, and simplicity.

Advanced Engineering for Maximum Performance

The Momentum HD features a one-piece sealed housing with an auxiliary air scoop, ensuring your engine receives the coolest, densest air for peak performance. The dyno-tuned roto-molded intake tube optimizes airflow for maximum power gains while maintaining a perfect fit. At the heart of this system is the massive Pro DRY S filter, offering 99.2% filtration efficiency with its three-layer synthetic media—completely oil-free for easy maintenance. Reinforced metal wrapping prevents filter collapse, even under extreme conditions. With premium stainless steel T-bolt clamps and a reinforced silicone turbo coupling, this intake is built for durability and a secure, leak-free fit. Plus, installation is a breeze with its minimal part design, getting you back on the road with more power in no time.

• Some or all of the applications listed are 50-state exempt, please see CARB EO# D-550-18 for details.