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Product Information

Product Details
Part No. RC-4381
Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)
K&N Universal Clamp-on Air Filters are manufactured for a wide variety of applications and unique filtration needs. K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. These versatile filters are constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment. Available in round, tapered (cone-style), and oval designs, K&N offers thousands of clamp-on filters in a multitude of shapes and sizes that cater to many precise applications. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:
  • ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle's acceleration by up to 10%.
  • EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.
  • SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
  • ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
  • LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions.
  • HIGH QUALITY: Made in America.
  • RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack - made for your vehicle.
Specifications
Flange Length:
0.625 in

Height:
3.25 in

Clamps Included:
3

Height:
1.375 in

Material:
Polyester

Top Material:
Chrome

Flange Type:
Offset

Outside Width:
4 in

Filter Material:
Cotton Gauze

Washable:
Yes

Washable:
Yes

Weight:
0.8 lb
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