aFe50-70121D Momentum HD Cold Air Intake for 2020-2025 GM 3.0L Diesel

Vehicle Fitment

• 2020-2025 Chevrolet Silverado 1500 (3.0L Duramax Diesel LM2/LZ0)
• 2021-2025 GMC Sierra 1500 (3.0L Duramax Diesel LM2/LZ0)
• 2021-2025 Chevrolet Suburban (3.0L Duramax Diesel LM2/LZ0)
• 2021-2025 Chevrolet Tahoe (3.0L Duramax Diesel LM2/LZ0)
• 2021-2024 Cadillac Escalade (3.0L Duramax Diesel LM2/LZ0)
• 2021-2025 GMC Yukon/Yukon XL (3.0L Duramax Diesel LM2/LZ0)

Features

• Momentum HD cold air intake system with 360° Pro DRY S dry synthetic filter
• Large 9" tall radial flow filter with 5-1/2" flange for maximal airflow
• Pro DRY S three-layer dry synthetic media - no oiling required
• One-piece sealed XLPE intake housing with patented filter-to-housing interface
• Clear sight window for easy filter inspections without removal
• Heat-resistant XLPE housing resists heat soak for consistent performance
• Computer-designed, dyno-tuned intake tube for optimized airflow gains
• Premium silicone coupling and stainless clamps for secure, leak-free seal

Specifications

• Part Number: 50-70121D
• Brand: aFe Power
• Air Filter Type: Pro DRY S dry synthetic media
• Measured Flow: ~585 CFM @ 7" H2O
• Estimated Gains: Up to +6 HP & +9 lb-ft torque
• Housing Material: Heat-resistant XLPE (cross-linked polyethylene)
• Installation: Direct bolt-on, no cutting/drilling required
• Emissions: Not CARB-exempt (restricted in certain states) :contentReference[oaicite:0]{index=0}

Included Components

• 1x Pro DRY S radial flow dry synthetic air filter
• 1x Sealed XLPE intake housing
• 1x Dyno-tuned intake tube
• 1x Silicone coupling
• Stainless-steel clamps & mounting hardware

Product Description

The aFe Power 50-70121D Momentum HD Cold Air Intake System is engineered to enhance airflow and performance for GM trucks and SUVs equipped with the 3.0L Duramax diesel (LM2/LZ0) from 2020 through 2025. This high-flow intake replaces the factory system with a sealed, high-capacity design that outflows stock by over 50%, delivering improved horsepower, torque, and throttle response while maintaining excellent filtration.

Featuring a large 9" tall Pro DRY S dry synthetic radial filter that requires no oiling and a one-piece sealed housing with patented filter-to-housing interface, the Momentum HD intake simplifies installation and filter maintenance. The clear sight window lets you check filter health at a glance, and premium silicone couplings with stainless clamps ensure a tight, secure seal. Designed for direct bolt-on fitment using factory mounting points, this system requires no cutting or modification. Note: This intake is **not CARB-exempt** and may not be legal for sale or use in states with strict emissions laws.