K&N 33-3078 | Air Filter

Part Number
Replacement Air Filter

Fits: 17-19 Porsche 718 Boxster, 17-19 Porsche 718 Cayman

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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!



  • K/N s replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection| and are covered by K/N s 10-Year/Million Mile Limited Warranty.
  • Will Not Void Vehicle Warranty
  • High Air Flow With Exceptional Filtration
  • Lasts Up To 50000 Miles Before Cleaning
  • Works With Original Equip. Mfg. Vehicle Electronics
  • Replacement Air Filter
  • Replacement Air Filter
  • Million Mile Limited Warranty
  • Designed To Boost Horsepower And Acceleration
  • Washable And Reusable


Automotive Item GradeHigh Performance
ColorHeather Red
Filter MaterialCotton Gauze
Filter Re-Oiling Amount2.73 oz (81 ml)
Flange Angle0 Degree
Frame DesignFlexible
Inside DiameterN/A
Item Height1.625 in. (41mm)
Item Weight1.800 lbs. (0.8 kg)
Machine WashableYes
Oil IncludedFilter Is Pre-Oiled
Outside Length11.563 in. (294mm)
Outside Width11.125 in. (283mm)
Overall Length11.563 in.
Package Contents1 Air Filter
Package MaterialCorrugated
Package Quantity1
Package TypeBox
Prop 65 (C, R or CR)CR
Prop 65 Warning Labelhttps://www.knfilters.com/images/l/prop65.jpg
TitleK&N 33-3078 Replacement Air Filter
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Panel| H-1.625 in.| L-11.563 in.| W-11.125 in.


  • BMC: FB92620
  • Porsche: 982129620B


  • 2017-2019 Porsche 718 Boxster
  • 2017-2019 Porsche 718 Cayman
Customer Questions
Can K&N filters get wet?
No, K&N filters should not get wet.
When to clean K&N air filter?
K&N air filters should be cleaned approximately every 50,000 miles (80,000 kilometers) or as recommended by the manufacturer.
Will K&N filter increase mpg?
It is possible for a K&N air filter to slightly improve fuel efficiency (MPG) under certain conditions.
What does K&N mean?
K&N stands for the names of the two founders of the company, Ken Johnson and Norm McDonald.
Please, mind that only logged in users can submit questions

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