Give your 6.6L Duramax L5P the airflow it deserves with the Banks Ram-Air Oiled Intake System. Designed specifically for 2020-2023 Chevrolet Silverado HD and GMC Sierra HD models, this complete intake system replaces the restrictive factory intake with a high-flow enclosed system engineered to maximise airflow while maintaining excellent filtration.

At the heart of the system is Banks' patented Air Mass Control Module, allowing the oversized Banks SuperTube and massive reusable Big-Ass Oiled Air Filter to flow significantly more air than the factory intake without triggering fault codes. The enclosed XLPE airbox connects to the factory hood and forward ram-air ducts, drawing cooler outside air while shielding the filter from hot engine bay temperatures.

The result is improved throttle response, faster turbocharger spool-up, stronger acceleration and increased fuel efficiency. Banks testing shows up to 58% greater air mass flow over the factory intake while maintaining excellent filtration and delivering a more aggressive induction sound under acceleration.

Designed for easy installation with no tuning required, the Banks Ram-Air Intake is one of the most effective upgrades available for owners wanting improved drivability, towing performance and everyday reliability.

Key Features

• Genuine Banks Ram-Air Oiled Intake System
• Patented Air Mass Control Module
• Oversized reusable Big-Ass Oiled Air Filter
• Banks SuperTube intake tube
• Up to 58% greater airflow than factory
• Enclosed XLPE airbox keeps intake temperatures low
• Connects to OEM hood and forward ram-air scoops
• Improved throttle response and turbo spool
• Stronger induction sound under acceleration
• No Check Engine Light
• CARB EO D-161-157 (50-State compliant)
• Genuine Banks Power product
• Part Number: 42266

Compatibility

Chevrolet

• Silverado 2500HD (2020-2023)
• Silverado 3500HD (2020-2023)

GMC

• Sierra 2500HD (2020-2023)
• Sierra 3500HD (2020-2023)

Engine

• 6.6L Duramax L5P Turbo Diesel

Fitment Notes

• Oiled air filter version.
• Direct bolt-on installation.
• Does not fit 2024-2025 models.
• No tuning required.
• Compatible with other Banks performance upgrades including the Derringer Tuner and Boost Tubes.