Designed exclusively for the latest 2025-2026 Duramax platform, the Banks Ram-Air Oiled Intake System is engineered to overcome the airflow restrictions introduced by GM's updated intake and crankcase ventilation system. Using patented Banks electronics, it delivers substantially greater airflow while maintaining factory drivability and preventing Check Engine Lights.

The system features Banks' oversized Big-Ass Oiled Air Filter, a high-flow Super-Tube intake, a large enclosed XLPE airbox and a unique EPDM rubber coupler that allows engine movement while maintaining smooth, unrestricted airflow. Cool air is supplied directly from the factory hood scoop and front ram-air ducts, while an additional side inlet provides fresh air and a deeper turbo induction sound.

New for the 2025 model year, GM added a crankcase ventilation pressure sensor that limits airflow with conventional aftermarket intakes. Banks solved this by incorporating both the Air Mass Control Module and the Crankcase Ventilation Control Module, allowing the engine to benefit from significantly improved air mass flow, faster turbo spool-up, stronger low-RPM performance and improved fuel economy without compromising reliability.

Whether your truck is used for towing, touring or heavy-duty work, the Banks Ram-Air Intake delivers outstanding filtration, increased airflow and the performance expected from a genuine Banks engineering solution.

Key Features

• Genuine Banks Ram-Air Oiled Intake System
• Specifically engineered for 2025-2026 Duramax L5P
• Oversized reusable Big-Ass Oiled Air Filter
• Patented Banks Air Mass Control Module
• Includes Banks Crankcase Ventilation Control Module
• Improved turbo response and wider powerband
• Improved fuel economy
• Large enclosed XLPE airbox
• Connects to the factory hood scoop and ram-air ducts
• Increased turbo induction sound
• No Check Engine Light
• Genuine Banks Power product
• Part Number: 42297

Compatibility

Chevrolet

• Silverado 2500HD — 2025-Current
• Silverado 3500HD — 2025-Current

GMC

• Sierra 2500HD — 2025-Current
• Sierra 3500HD — 2025-Current

Engine

• 6.6L Duramax L5P Turbo Diesel

Fitment Notes

• Oiled air filter version.
• Direct bolt-on installation.
• Includes the Banks Air Mass Control Module and Banks Crankcase Ventilation Control Module.
• No tuning required.
• Not compatible with catch cans, including VSE.