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K&N For BMW 520i/BMW 523i/28i models 57i Series Performance Air Intake System

K&N For BMW 520i/BMW 523i/28i models 57i Series Performance Air Intake System

Guaranteed to increase horsepower
Designed to improve throttle response and engine sound
Replaces entire factory air intake system
Not legal for highway use in states adopting California emission regulations
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
K&N Million Mile Limited Warranty®
The K&N 57-0439 Air Intake fits some BMW 520i, BMW 523i, and BMW 528i models. See vehicle applications link for details.

K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provides even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Intakes are not legal for use in California and other US States adopting California emission standards. 

Product Specifications

Replacement Filter                       RC-70001
Air Filter Color                               Red
Air Filter Material                           Cotton Gauze
Air Filter Outlet Shape                   Round
Clamps Included                         1
Clamp Material                          Stainless Steel
Clamp Style                              Regular
Couplers Included                        None
Type                                               Gen I
Product Style                               57i Series International Kits
Air Filter Height                         8.031 in (204 mm)
Intake Pipe Color / Finish         Black
Intake Pipe Material                        Flex Hose
Street Legal In All US States     No
TUV Approved (Europe)             No
Weight                                          3 lb (1.4 kg)
Product Box Height                       9 in (229 mm)
Product Box Length                      9 in (229 mm)
Product Box Width                        9 in (229 mm)
California Restricted                  Not legal for sale or use in California

FITMENT

2003 BMW 520i 2.2L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2003 BMW 520i 2.0L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2002 BMW 520i 2.2L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2002 BMW 520i 2.0L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2001 BMW 520i 2.2L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2001 BMW 520i 2.0L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2000 BMW 528i 2.8L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2000 BMW 523i 2.5L L6 Fuel Injection
To 9/00 Street Legal In All US States: No TUV Approved (Europe): No
2000 BMW 520i 2.2L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
2000 BMW 520i 2.0L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
1999 BMW 528i 2.8L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
1999 BMW 523i 2.5L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
1999 BMW 520i 2.0L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
1998 BMW 528i 2.8L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No
1998 BMW 523i 2.5L L6 Fuel Injection
From 9/98 Street Legal In All US States: No TUV Approved (Europe): No
1998 BMW 520i 2.0L L6 Fuel Injection
All Models Street Legal In All US States: No TUV Approved (Europe): No

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