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K&N 57-0421

Cold Air Intake System

K&N 57-0421

599-57-0421

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Estimated ship date 09/25/17 if Ordered Today
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K&N 57-0421 Cold Air Intake System $172.99
Cold Air Intake System
  • 1998-2005 VW Golf 1.8/2.0/2.5L

  • K&N 57-0421 Details

    Volkswagen

    • Guaranteed to increase horsepower
    • Designed to improve throttle response and engine sound
    • Replaces entire factory air intake system
    • Washable and reusable lifetime air filter
    • Lasts up to 100,000 miles before service is required (depending on driving conditions)
    • Easy to install, usually in 90 minutes or less
    • Not legal for sale or use in California or other states adopting California emission standards.

    Specifications:

    Flange Type
    Centered
    Replacement Filter
    RC-3600
    Clamp Material
    Steel
    Clamps Included
    3
    Couplers Included
    0
    Filter Material
    Cotton Gauze
    Filter Color
    Red
    Top Style
    Metal
    Clamp Style
    Regular
    Intake Pipe Material
    Flex Hose
    Air Filter Outlet Shape
    Round
    Top Material/Finish
    Chrome
    Intake Pipe Color / Finish
    Black
    Air Filter Large End Diameter
    5.375 in (137 mm)
    Top Outside Diameter
    4.5 in (114 mm)
    Filter End Cap Finish
    Chrome
    Quantity
    Sold as a kit
    Sleeve Color
    Black
    Tube Color
    Black
    Tube Material
    Plastic
    Flange Length
    0.625 in (16 mm)
    Height
    5 in (127 mm)
    Base Outside Diameter
    5.375 in (137 mm)
    Flange Inside Diameter
    4 in (102 mm)
    Weight (lbs.)
    2.9 lb (1.3 kg)
    California Restricted
    Not legal for sale or use in California
    Product Style
    57i Series International Kits
    Type
    Gen I
    Air Filter Height
    5 in (127 mm)
    Manufacturer's Part Number:
    57-0421

    K&N 57 (FIPK) and 63 (AirCharger) Series Air Intake Kits represent a dramatic improvement over the K&N OE Replacement Filter alone. They use only non-metallic rotationally molded tubes that can reduce intake air temperature and sound compared to metal tubes. Restriction can exist between an air filter and engine, which undermines the benefits of a K&N Air Filter. The weakest link in the airflow "chain" robs a vehicle of horsepower; often that weak point is the factory air path to the engine. K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. The aerodynamic tube drives a massive amount of air into an engine to produce more power.

    K&N High-Flow Cold Air Intakes are state-of-the-art. They begin with the largest conical air filter that can fit into the engine compartment while still using factory holes/mounts. This extra filter size provides even more airflow at lower restriction than a K&N OE Replacement Filter because the standard filter is limited to the size of the factory air box. The oversized air filter also captures and holds more dirt, extending the service life before cleaning is required (up to 100,000 miles). The filter is isolated from high engine temperature by a heat shield designed to lower the temperature of the air entering the engine, which increases horsepower. The filter is then attached to a high-density polyethylene tube. The molding process allows tubes to be precisely formed in order to reduce turbulence and accelerate airflow into the engine. This is why some tubes have unique shapes; they're engineered specifically for each application. Finally, the tube connects to the engine with adapters made from high-strength silicon & reinforced nylon to ensure long life.

    Features

    • Vehicle-Specific Design
    • Washable/Reusable Air Filter
    • Replaces OE Filter and Air Box
    • Works with Original Factory Computer
    • Easy to Install (Usually 90 minutes or less)
    • Guaranteed to Provide More HP and Better Acceleration
    • Built to Use Stock Holes & Mounting Points Whenever Possible
    • Street-Legal in Most States except California (Check part number or vehicle listing for CARB status)
    • Lasts up to 100,000 Miles before Requiring Service
    • Million Mile Limited Warranty

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