Banks Power 42297-D Ram-Air Cold Air Intake System with Dry Filter for 6.6L Duramax L5P

The Banks Power 42297-D Ram-Air Intake System is a high-performance cold air intake designed for the 6.6L Duramax L5P diesel engine. Featuring a dry washable filter element, this system delivers a significant improvement in air mass flow over the factory intake, resulting in increased power, sharper turbo response, and improved fuel economy.

Banks Power engineered this intake with a patented Air Mass Control Module and a Crankcase Ventilation (CCV) Control Module — a critical innovation that allows the system to go beyond the factory airflow limitations introduced with the 2025 Duramax platform's new CCV pressure sensor, eliminating the risk of check engine lights that plague competitor intakes.

Key Features:

• Increases mass air flow by 45% over stock with a 45% reduction in pressure loss
• Dry washable black filter element — no oiling required, easy to service
• Massive filter with over twice the airflow area of any competitor filter
• Durable Cross-Linked Polyethylene (XLPE) heat-resistant two-piece airbox construction
• Enclosed airbox keeps out hot, power-robbing engine bay air
• Connects to OEM hood scoop and forward ram-air scoops for enhanced performance at speed
• Additional side fender inlet draws in fresh, cool air from the wheel well area
• Unique bellowed EPDM silicone coupler accommodates engine movement and prevents component damage
• Reduces soot output, decreasing DPF regeneration frequency
• Turbo spins up to 3,000 RPM slower for improved efficiency and longevity
• Increased and more aggressive induction sound with no cabin drone
• Includes patented Banks Air Mass Control Module
• Includes Banks Crankcase Ventilation Control Module
• No check engine light
• 5-Year Limited Warranty on system

The Banks Ram-Air 42297-D is a complete kit engineered for straightforward installation, retaining OEM scoop connections while dramatically outperforming the factory intake. It is the only cold air intake on the market that genuinely improves mass air flow beyond stock levels on the 2025–2026 Duramax L5P platform.