57-0366 - K&N 57i Series Kits, Performance Intake Kit direct from K&N

K&N 57-0366
57i Series Kits > Performance Intake Kit

Your Price: $203.20

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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 provide even more airflow at lower restriction than a K&N O/E replacement filter which is always 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. [MORE]

Available Information

Installation Instruction Sheet

Instructions Francaises - French

57-0366 Vehicle Applications

Part 57-0366 Product Specifications
Product Style: 57i Series International Kits
Type: Gen I
Street Legal In All US States: No
TUV Approved (Europe): No
Clamp Style: Regular
Replacement Filter: RC-4470
Weight: 4.1 lb (1.9 kg)
Product Box Length: 15.13 in (384 mm)
Product Box Width: 9.13 in (232 mm)
Product Box Height: 9.25 in (235 mm)

Accessories

99-5050 - Filter Care Service Kit - Squeeze

RC-4470 - Replacement Filter

Product Reviews Review part 57-0366

I added your filter and intake tube to my BMW 325i and am more than pleased. The growl is great and it removed a low down flat spot and added a little more kick but the best bit is it improved my fuel economy by at least 1.2L per 100km, a savings of about $1.60+ per 100km. It will pay for itself in the not too distant future. I have always had a K&N filters in my cars over the years and recommend them to everyone
Cheers
Ross Colburn, Sunshine Coast, Australia

BMW 320i e36 with K&N stock replacement air filter
Perfect sound, instant reaction.
Thanks
David Novotný, Czech Republic

I put over 70000 miles on my 1995 BMW 325i before I got smart and put in the basic K&N replacement for the floppy OEM filter. What a difference!

A few weeks ago, after rolling over 220,000 miles, my car was in the local BMW specialty shop for a full front to back inspection and tune up. The owner of the shop test drove my car and remarked, when I picked it up, it had more power and torque than any non M type 3 series than he had ever experienced (this coming from a German certified BMW engineer).

He sheepishly admitted to having given it a thorough test drive and asked what I had done to make it so powerful. I replied that all it had was an aftermarket chip and a belatedly added on K&N air filter.

I have, over the years, flogged my 325i up and down mountain back roads and cruised over endless hours of interstate and have never wanted for more power. I still have the same dutifully cleaned and oiled K&N filter too!

Thank you K&N
Patrick Smith, Staunton, Virginia

K&N 57-0366 fits the following:

2005 BMW 325XI 2.5L L6 F/I - All