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K&N Engineering

K&N Replacement Air Filter BMW F/I CARS 1978-91

$104.99 In Stock Pre-Order Sold out
Notify when available
CODE: KNN33-2005

1-4 DAYS DELIVERY

100% ORIGINAL AND QUALITY

24 MONTHS GUARANTEE

  • Description
  • Shipping and Refund
  • Reviews
K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Technical Bulletin


This Part Fits:

Year Make Model Submodel
1975-1976 BMW 3.0Si Base
1984-1985 BMW 318i Base
1980-1983 BMW 320i Base
1984-1985 BMW 325e Base
1982-1985 BMW 528e Base
1979-1981 BMW 528i Base
1977-1978 BMW 530i Base
1983-1984 BMW 533i Base
1985-1987 BMW 535i Base
1988 BMW 535is Base
1977-1978 BMW 630CSi Base
1978-1984 BMW 633CSi Base
1985-1989 BMW 635CSi Base
1978-1984 BMW 733i Base
1985-1987 BMW 735i Base
1987 BMW L6 Base
1986-1987 BMW L7 Base
1988-1991 BMW M3 Base
1990-1992 Yugo Cabrio Base

Our Return Policy:

We want you to be completely satisfied with your purchase from Chief Motorsports. If for any reason you are not satisfied, you may return most new, unopened items within 30 days of delivery for a full refund or exchange.

To be eligible for a return, items must be in their original packaging and in the same condition that you received them. Some items are exempt from being returned, including custom orders, special orders, and used items. These items are sold "as is" and are not eligible for return or exchange.

To initiate a return, please contact our customer service team by email or phone to request a Return Merchandise Authorization (RMA) number. We will provide you with instructions on how to return the item(s) and a prepaid shipping label (if applicable).

Please note that original shipping charges are non-refundable and the customer is responsible for return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance as we cannot be responsible for items that are lost or damaged during transit.

Once we receive the returned item(s) and confirm that they meet the return requirements, we will process the refund or exchange within 7 business days.

We reserve the right to refuse returns or issue partial refunds for items that do not meet the above return requirements.

If you have any questions about our return policy, please don't hesitate to contact us.

Our Warranty Policy:

Chief Motorsports does not cover manufacturer's warranties. All warranties and guarantees are provided directly by the manufacturer. If you have any issues with a product that you believe is covered under warranty, please contact the manufacturer directly for assistance.

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