Engineered for 3rd Generation (2007.5–2009) and early 4th Generation (2010–2012) Dodge Ram 2500/3500 trucks powered by the 6.7L 24-Valve Cummins turbo diesel, the aFe Power Magnum FORCE Stage-2 Cold Air Intake System (51-31342-1) replaces restrictive stock induction components with an open, high-velocity intake tract. The factory corrugated intake hose, sound baffles, and enclosed cleaner box restrict volumetric airflow; this system eliminates those bottlenecks to deliver dyno-proven gains of up to +5 horsepower and +12 lb-ft of torque while significantly reducing turbocharger spool lag.

The assembly features a one-piece 18-gauge steel heat shield with a black powder-coated finish that bolts directly into factory attachment locations without drilling or cutting. A heat-insulating molded plastic intake tube directs a high-volume charge of dense ambient air smoothly toward the Holset turbo inlet while resisting radiant under-hood heat soak. At the intake tract inlet sits an oversized, conical Pro DRY S synthetic filter featuring three layers of progressive dry media wrapped in a pliable 100% polyurethane base and top, providing maximum dust-holding capacity and oil-free, wash-and-reuse maintenance.

Key Features & Benefits

• 81% Airflow Gain Over Stock: Dramatically cuts induction restriction, producing verified dyno gains of up to +5 HP and +12 lb-ft of torque with enhanced turbo spool acoustics.
• Pro DRY S 3-Layer Synthetic Media: Three progressively finer layers of oil-free synthetic filter media capture sub-micron particulate without risk of MAF or IAT sensor contamination.
• 18-Gauge One-Piece Steel Heat Shield: Black powder-coated steel heat shield blocks radiant engine compartment heat, drawing cool outside air from factory fender and forward passages.
• Thermal-Resistant Molded Intake Tube: Aerodynamic polymer ducting resists heat conduction, maintaining high air density and smooth laminar airflow into the turbo compressor.
• 100% Polyurethane Filter Construction: Durable polyurethane filter base and top maintain an airtight seal across repeated wash cycles without cracking or shrinking.
• Direct Bolt-On Fitment: Installs in under 30 minutes using standard hand tools, securing to OEM mounting locations with no cutting, drilling, or vehicle modifications.

Technical Specifications

• Manufacturer Part Number / SKU: 51-31342-1 (Magnum FORCE Stage-2 Series)
• Truck Platform: 3rd Generation (2007.5–2009) & Early 4th Generation (2010–2012) Ram Heavy Duty
• Engine Platform: 2007.5–2012 Dodge Ram 6.7L 24V Cummins Turbo Diesel
• Filter Media Type: Pro DRY S 3-Layer Synthetic (Oil-Free, Washable & Reusable)
• Airflow Improvement: Outflows Factory Intake by Up to +81%
• Dyno Performance Gains: Up to +5 HP / +12 lb-ft Torque
• Heat Shield Material: 18-Gauge Powder-Coated Steel
• Intake Tube Material: Heat-Insulating Roto-Molded Plastic
• Tuning Required: None (Operates on Stock Calibration or Custom Tunes)
• Street Legal Status: 50-State Emissions Compliant (CARB E.O. Number D-550-4)
• Warranty: aFe Power 2-Year Limited Warranty

Vehicle Fitment & Installation Notes

• 2007.5–2009 Dodge Ram 2500 / 3500 (3rd Gen) – 6.7L 24V Cummins Turbo Diesel
• 2010–2012 Ram 2500 / 3500 (4th Gen) – 6.7L 24V Cummins Turbo Diesel
• 2008–2012 Ram 4500 / 5500 Chassis Cab (3rd & 4th Gen) – 6.7L 24V Cummins Turbo Diesel
• Fits Model Years: 2007.5, 2008, 2009, 2010, 2011, 2012
• Fitment Notice: Engineered for 2007.5–2012 6.7L Cummins trucks. Does not fit 2003–2007 5.9L Common Rail Cummins models or 2013+ Ram trucks equipped with dual-inlet Ram Active Air systems.
• Installation Tip: Verify the rubber bulb seal along the heat shield top rail is trimmed cleanly to fit the contour of the hood insulation, and tighten the clamp on the silicone turbo boot securely behind the raised bead on the intake tube.