Maximize the performance of your 2004.5-2005 GM 6.6L Duramax LLY with the Banks Power 42135-D Ram-Air Intake System. Designed to deliver substantial gains in airflow, air density, and power, this high-performance intake system outclasses stock and aftermarket competitors, ensuring your engine operates at its peak.

Featuring a large dry synthetic air filter, the Ram-Air Intake System offers extended life and minimal maintenance, far surpassing the capabilities of smaller, non-reusable paper filters. The intake system is distinguished by its substantial 7-1/8" outlet and streamlined components, all housed within an enclosed cold-air box. This advanced design effectively shields the intake from hot engine air, delivering up to 57% more airflow than stock systems and up to 23% more than other aftermarket options.

The result? A significant boost in power, with up to +39 horsepower and +69 lb-ft of torque, improved fuel efficiency, and reduced emissions of unburned fuel. Banks' innovative 4-1/2" bellows are engineered to flex with engine movements, protecting the system from damage and ensuring a longer service life. The system is designed to avoid triggering fault or error codes and includes a lifetime warranty on the filter element for added confidence.

Key Features:

• Enhanced Performance: Achieve dramatic increases in airflow, power, and torque, with gains of up to +39 horsepower and +69 lb-ft of torque.
• Low Maintenance: The large dry synthetic air filter requires less frequent cleaning, providing long-lasting performance with minimal upkeep.
• Heat Protection: The enclosed cold-air box prevents hot engine air from entering the intake, delivering cooler, denser air for better combustion and efficiency.
• Durability: Banks' 4-1/2" bellows flex with engine movements, preventing damage and extending the system’s lifespan.
• Comprehensive Warranty: Includes a lifetime warranty on the filter element and a 5-Year Limited Warranty on the entire system.

For those looking to push their vehicle’s performance even further, consider the optional Banks Super-Scoop. This accessory enhances the Ram-Air Intake System by channeling a forceful charge of cool, pressurized air from outside the engine compartment directly into the air filter housing. The Super-Scoop, sold separately, also diverts rainwater and debris away from the intake system, further optimizing performance and protection.

Upgrade your Duramax LLY with the Banks Power 42135-D Ram-Air Intake System and experience superior power, efficiency, and reliability.