aFe51-10831 Magnum Force Stage-1 Cold Air Intake for 1999-2005 VW 1.8/1

Vehicle Fitment

• 1999-2005 Volkswagen Beetle (L4 1.8L Gas / L4 1.9L Diesel)
• 2000-2005 Volkswagen Golf (MK4/MK5, L4 1.8L Gas / L4 1.9L Diesel)
• 2000-2005 Volkswagen Jetta (L4 1.8L Gas / L4 1.9L Diesel)

Features

• Magnum Force Stage-1 cold air intake engineered for VW 1.8L/1.9L engines
• Washable and reusable Pro DRY S dry synthetic air filter media
• 360° conical air filter design for increased surface area
• Durable 16-gauge powder-coated steel heat shield blocks hot under-hood air
• Improved throttle response and airflow compared to stock intake
• Direct bolt-on installation with included hardware - no cutting/drilling
• Boosts horsepower and torque thanks to enhanced cold air flow
• CARB-legal for supported vehicles (50-state legal)*

Specifications

• Part Number: 51-10831
• Brand: aFe Power
• Series: Magnum Force Stage-1
• Air Filter Type: Pro DRY S dry synthetic media
• Heat Shield Material: Powder-coated 16-gauge steel
• Installation: Direct fit, uses factory mounting points
• Warranty: 2-year aFe Power limited warranty
• Emissions: CARB Exempt (EO D-550-3 / EO D-550-4) on listed applications :contentReference[oaicite:0]{index=0}

Included Components

• 1x Pro DRY S dry synthetic air filter
• 1x Powder-coated steel heat shield
• Mounting hardware and clamps

Product Description

The aFe Power 51-10831 Magnum Force Stage-1 Cold Air Intake System is a performance-oriented upgrade specifically designed for VW Beetle, Golf, and Jetta models equipped with 1.8L or 1.9L 4-cylinder engines from 1999-2005. Featuring a sizable 360° Pro DRY S dry synthetic air filter, this intake dramatically increases airflow over the stock airbox, helping the engine breathe better for improved throttle response, horsepower, and torque. The dry synthetic media is washable and reusable, eliminating the need for oil maintenance and simplifying upkeep.

Enclosed within a rugged powder-coated steel heat shield, the intake draws cooler, denser air from outside the engine bay, improving combustion efficiency and throttle feel. The direct bolt-on design bolts into place using existing factory mounting points with no cutting or drilling required, making installation straightforward for most enthusiasts. This intake is CARB exempt for applicable vehicles, meaning it is legal for sale and use in all 50 states for the certified models listed.