K&N® 33-2011 - 33 Series Air Filter

K&N Performance Air Intake Systems
K&N® - 33 Series Air FilterK&N® - 33 Series Air FilterK&N® - 33 Series Air Filter Installation InstructionsK&N® - Cleaning GuideK&N® - Air Filter Overview 602x420K&N Authorized Dealer
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33 Series Air Filter (33-2011) by K&N®. Get better performance, superior engine protection and more economical operation just by changing your air filter. The K&N air filter gives you increased airflow without sacrificing filtration ability. It's the last air filter you'll ever buy for your car.

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  • Improves engine airflow
  • Increases horsepower and acceleration
  • Superior filtration without reduced airflow
  • Reduces maintenance costs
  • Washable and reusable
  • Get up to 50,000 miles between cleanings under normal driving conditions
  • Emissions legal in all States
  • Backed by K&N's Million Mile Limited Warranty

Most air filters on the market are a compromise. Many high-performance filters deliver better airflow, but sacrifice filtering ability and engine protection in the process. OEM filters, which are usually made of paper, filter adequately but at the expense of airflow. And airflow decreases as these air filters become dirty. Not so the K&N air filter. K&N air filters increase airflow without decreasing filtration ability, and the increased airflow remains consistent throughout the filter's service interval. The secret is in the K&N filter's construction.

K&N's initial goal was to develop a filter that would deliver increased airflow during dirty, dusty off-road racing conditions. Increased airflow improves the efficiency of the combustion process, increasing horsepower and torque. But just increasing airflow without ensuring adequate filtration under those conditions would result in a ruined engine. K&N's solution was a filter design consisting of 4 to 6 layers of cotton gauze sandwiched between two aluminum wire screens. The cotton is then treated with a specially formulated grade of oil that causes tackiness throughout the cotton’s microscopic strands. The resulting K&N filter not only delivers increased airflow while trapping dirt particles that could harm your engine, that level of airflow is maintained even as the filter gets dirty. The layers of oiled cotton fibers in the K&N filter trap dirt particles that are smaller than the holes in the filter media. The thickness of the layers also allows the K&N filter to trap dirt and dust on many levels, trapping more dirt without decreasing airflow. Contrast this with a paper filter that only traps dirt on its surface; as the surface area becomes clogged, the airflow rate goes down.

Each K&N air filter is custom designed to fit into your existing factory air box. The K&N filter is economical because it's the last air filter you'll have to buy for your car. It can be washed and reused many times, and since you can usually drive up to 50,000 miles between servicing, you won't have to clean it very often. And every K&N filter is backed by K&N's Million Mile Limited Warranty. By the way, check the CARiD reviews and read what the customers think of K&N porducts.

Brand: K&N       Part Number: 33-2011       UPC: 024844013163
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K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.

Vehicle FitmentThis part is compatible with 54 vehicle(s)
Year Make Model Fitment Notes
1995 Jaguar XJ-Type    XJS 6.0L
1994 Jaguar XJ-Type    XJS 6.0L
1992 Jaguar XJ-Type    5.3L
1991 Jaguar XJ-Type    XJ12 / XJS
1990 Jaguar XJ-Type    XJ12 / XJS
1989 Jaguar XJ-Type    XJ12 / XJS
1988 Jaguar XJ-Type    XJ12 / XJS
1988 Lotus Esprit
1987 Jaguar XJ-Type    XJ12 / XJS
1987 Lotus Esprit
1986 Jaguar XJ-Type    XJ12 / XJS
1986 Lotus Esprit
1985 Jaguar XJ-Type    XJ12 / XJS
1985 Lotus Esprit
1984 Jaguar XJ-Type    XJ12 / XJS
1984 Lotus Esprit
1983 Jaguar XJ-Type    XJ12 / XJS
1983 Lotus Esprit
1982 Jaguar XJ-Type    XJ12 / XJS
1982 Lotus Esprit
1981 Jaguar XJ-Type    XJ12 / XJS
1981 Lotus Esprit
1980 Jaguar XJ-Type    XJS
1980 Lotus Elite
1980 Lotus Esprit
1979 Jaguar XJ-Type    XJ12 / XJS
1979 Lotus Eclat
1979 Lotus Elite
1979 Lotus Esprit
1978 Jaguar XJ-Type
1978 Lotus Eclat
1978 Lotus Elite
1978 Lotus Esprit
1977 Jaguar XJ-Type
1977 Lotus Eclat
1977 Lotus Elite
1977 Lotus Esprit
1976 Jaguar XJ-Type
1976 Lotus Eclat
1976 Lotus Elite
1976 Lotus Esprit
1975 Jaguar XJ-Type
1974 Jaguar XJ-Type    XJ6
1973 Jaguar XJ-Type
1973 Triumph Stag
1972 Jaguar XJ-Type
1972 Jaguar XKE
1972 Triumph Stag
1971 Jaguar XKE    4.2L
1971 Triumph Stag
1970 Jaguar XKE
1970 Triumph Stag
1968 Jaguar XJ-Type
1967 Daimler Sovereign
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