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1975-1981 Corvette C3 K&N Air Filter for 305 and 350

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K & N
Part #: 609-021
Availability: In Stock - Ships today if ordered by 3 PM CT
Only 2 Left, Order Soon!
Fits Years:
  • 1975-1981
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  • Description

1975-1981 C3 K&N Air Filter for 305 and 350

Specially designed 1975-1981 Corvette K & N Air Filters actually increase airflow. Here's how: dust and dirt remain on the outer surface of the filter, allowing virtually unrestricted airflow. Rain and mist are atomized as they pass through the K & N oiled fabric element, and excessive oil blow-by from emission control devices will not clog the specially-treated element. Repeated tests on dynamometers reveal consistent increases of 3-5 hp, and their "clean and re-use" feature makes these filters one of the best buys available today.

  • Fits 1975-1981 Corvettes
  • Fits 305 & 350 Engines
  • 3-5 Horsepower Gain
  • Clean and Re-use For Years of Increased Air Flow
  • Filters Are Pre-Oiled
  • If Filter Is Pink/Red, It Is Already Oiled, If Filter Is White, K&N Oil Needs To Be Added



Also known under these part numbers:

  • E1500