aFe 50-74004 Momentum HD Pro 10R Cold Air Intake for 07.5-10 Chevy/GMC 6.6L

Vehicle Fitment

• 2007.5-2010 Chevrolet Silverado 2500 HD (V8 6.6L Duramax LMM diesel)
• 2007.5-2010 Chevrolet Silverado 3500 HD (V8 6.6L Duramax LMM diesel)
• 2007.5-2010 GMC Sierra 2500 HD (V8 6.6L Duramax LMM diesel)
• 2007.5-2010 GMC Sierra 3500 HD (V8 6.6L Duramax LMM diesel)

Features

• Momentum HD high-flow sealed cold air intake engineered to improve diesel performance
• Huge pre-oiled Pro 10R cotton gauze air filter with 10 layers for maximum airflow and filtration
• Massive 1,000 CFM 360° radial flow design increases surface area and efficiency
• One-piece sealed housing with built-in auxiliary air scoop directs cooler outside air
• Clear sight window allows easy visual inspection of the filter without disassembly
• CAD-designed, dyno-tuned intake tube for optimized airflow and throttle response
• Premium stainless-steel T-bolt clamps and reinforced silicone couplings ensure secure installation
• Urethane plug included for blocking the auxiliary inlet in cold weather conditions

Specifications

• Part Number: 50-74004
• Brand: aFe Power
• Series: Momentum HD Pro 10R
• Filter Type: Pre-oiled Pro 10R cotton gauze
• Filter Size: ~1,000 CFM rated 360° radial flow
• Airflow Increase: Up to ~42% over stock intake
• Estimated Performance Gains: Up to +20 HP and +57 lb-ft torque
• Construction: One-piece sealed housing with premium hardware
• Fitment: Direct-fit for 2007.5-2010 GM 6.6L Duramax LMM diesel engines
• Emissions: 46-state legal with CARB EO# D-550-18 - not legal in CA/CO/NY/ME without exemption

Included Components

• 1x Momentum HD sealed intake housing
• 1x Roto-molded intake tube
• 1x Pro 10R pre-oiled performance air filter
• Premium stainless-steel T-bolt clamps
• Reinforced silicone couplings
• Urethane auxiliary inlet plug
• All required mounting hardware

Product Description

The aFe Power 50-74004 Momentum HD Pro 10R Cold Air Intake System is a premium performance upgrade designed for 2007.5-2010 Chevrolet Silverado and GMC Sierra heavy-duty trucks equipped with the 6.6-liter Duramax LMM diesel engine. This sealed intake replaces the restrictive factory airbox with a high-flow design built around a massive pre-oiled Pro 10R cotton gauze filter capable of around 1,000 CFM airflow. The unique one-piece sealed housing with auxiliary air scoop and clear sight window helps bring in cooler, denser air for improved combustion and throttle response.

With a dyno-tuned intake tube and premium stainless-steel hardware, the 50-74004 enhances throttle response, torque, and horsepower potential, delivering up to approximately +20 HP and +57 lb-ft of torque over stock while increasing airflow by up to ~42%. The upgrade also includes a urethane plug to block the auxiliary inlet for cold-climate use and is engineered for easy direct-bolt installation requiring no cutting or drilling. This intake system is 46-state legal with CARB Executive Order D-550-18 but is **not legal for sale/use in California, Colorado, New York, Maine, or other CARB-equivalent states without exemption**.