Banks Power Ram-Air Intake System 42266 | 2020-2023 Duramax 6.6L L5P

Banks Power 42266 & 42266-D Ram-Air Intake System – 2020-2023 GM 6.6L Duramax L5P

Unleash the full potential of your 2020-2023 Silverado or Sierra 2500/3500 6.6L Duramax L5P with the Banks Power Ram-Air Intake System. Available in both Oiled Reusable Filter (42266) and Dry Disposable Filter (42266-D) options, this intake system is engineered with Banks’ patented Air Mass Control Module to overcome GM’s restrictive ECM limitations. The result is unmatched airflow gains, improved throttle response, and more power without triggering check engine lights.

Maximum Airflow & Performance
Banks’ radical new intake design delivers up to a 58% increase in Mass Air Flow compared to stock. A massive “Big-Ass” filter, oversized induction tube, and enclosed XLPE airbox maximize airflow while keeping out hot engine bay air. The airbox connects to the OEM hood and forward ram-air scoops, while a secondary side inlet pulls in cool air from the fender well for even more flow and a more aggressive induction note.

Filter Options for Every Driver
Choose between the Oiled Reusable Filter for maximum service life and extended cleaning intervals, or the Dry Disposable Filter for simple, no-maintenance replacement. Both filters are oversized for huge dust capacity and engineered to outflow the competition while protecting your engine.

Engineered Beyond Stock Limits
The factory airbox design is bulky and restrictive, with harsh bends, silencers, and resonators that reduce airflow. Banks eliminates these choke points with a smooth, organic airbox shape and a tapered EPDM intake elbow with exclusive bellows that allows free engine movement and unobstructed airflow into the turbo. This results in denser, cooler intake air that improves fuel economy, lowers soot output, and reduces the frequency of DPF regens.

Key Features:

• Available with Oiled Reusable Filter (42266) or Dry Disposable Filter (42266-D)
• Patented Banks Air Mass Control Module – No Check Engine Lights
• 58% More Mass Air Flow vs. Stock
• Enclosed Two-Piece XLPE Airbox – Easy Servicing
• Connects to OEM Hood & Forward Ram-Air Scoops
• Additional Side Inlet for Cool Fender-Well Air
• “Big-Ass” Filter Design for Maximum Dust Capacity
• Improved Fuel Economy & Reduced Soot Output
• More Audible & Aggressive Induction Note
• Exclusive EPDM Intake Elbow with Bellows for Engine Flex
• Extends Service Life & Outflows All Competitors