K&N Universal Air Filter: 2.5" Flange, 6" Base, 5" Top, 5.5" Height

SKU: KNNRU-4950
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Sale price$64.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N Universal Air Filter RU-4950: High-Flow Performance for Various Applications

Enhance your engine's air intake with the K&N Universal Air Filter RU-4950. Engineered for versatility, this high-flow air filter is designed to fit a wide array of vehicles and equipment, from performance cars and motorcycles to generators and other specialized machinery. Its robust construction ensures durability and longevity, while its washable and reusable design offers excellent long-term value.

Product Specifications:

  • Flange Diameter: 2.5 inches
  • Base Diameter: 6 inches
  • Top Diameter: 5 inches
  • Height: 5.5 inches
  • Filter Type: Universal, conical shape
  • Material: High-quality cotton gauze media for superior filtration
  • Flange: Pliable rubber for secure, vibration-dampening fit
  • Washable & Reusable: Designed for repeated cleaning and use, reducing waste and cost.

Benefits of K&N Universal Air Filters:

  • Increased Airflow: Allows more air into the engine, potentially improving horsepower and acceleration.
  • Superior Filtration: Captures contaminants effectively while maintaining airflow.
  • Durable Construction: Built to last with strong materials and a flexible rubber flange that can stretch up to 1.5mm for a secure fit.
  • Easy Maintenance: Can be easily cleaned and re-oiled using K&N’s Recharger® kits.
  • Versatile Fitment: Ideal for custom applications, engine swaps, or replacing restrictive stock filters.

The K&N RU-4950 universal air filter is an excellent choice for enthusiasts looking to upgrade their intake system. Its dimensions make it suitable for various engine bays where space might be a constraint. Trust K&N's reputation for quality and performance to deliver an exceptional air filtration solution for your vehicle or equipment.

Upgrade your air intake today with the K&N Universal Air Filter RU-4950, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2007-2009 Ford Focus S
2007-2009 Ford Focus SE
2007-2009 Ford Focus SES
2009 Ford Focus SEL
2009-2011 Mitsubishi Lancer DE
2009-2011 Mitsubishi Lancer ES
2010 Mitsubishi Lancer Evolution SE
2010-2011 Mitsubishi Lancer Evolution GSR
2010-2011 Mitsubishi Lancer Evolution MR Touring
2010-2011 Mitsubishi Lancer GTS
2010-2011 Mitsubishi Lancer GTS Sportback
2010-2011 Mitsubishi Lancer Ralliart Sportback
2011 Mitsubishi Lancer ES Sportback
2012 Mitsubishi Lancer GT
2012 Mitsubishi Lancer GT Sportback
2012 Mitsubishi Lancer SE

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N Universal Air Filter RU-4950: High-Flow Performance for Various Applications

Enhance your engine's air intake with the K&N Universal Air Filter RU-4950. Engineered for versatility, this high-flow air filter is designed to fit a wide array of vehicles and equipment, from performance cars and motorcycles to generators and other specialized machinery. Its robust construction ensures durability and longevity, while its washable and reusable design offers excellent long-term value.

Product Specifications:

  • Flange Diameter: 2.5 inches
  • Base Diameter: 6 inches
  • Top Diameter: 5 inches
  • Height: 5.5 inches
  • Filter Type: Universal, conical shape
  • Material: High-quality cotton gauze media for superior filtration
  • Flange: Pliable rubber for secure, vibration-dampening fit
  • Washable & Reusable: Designed for repeated cleaning and use, reducing waste and cost.

Benefits of K&N Universal Air Filters:

  • Increased Airflow: Allows more air into the engine, potentially improving horsepower and acceleration.
  • Superior Filtration: Captures contaminants effectively while maintaining airflow.
  • Durable Construction: Built to last with strong materials and a flexible rubber flange that can stretch up to 1.5mm for a secure fit.
  • Easy Maintenance: Can be easily cleaned and re-oiled using K&N’s Recharger® kits.
  • Versatile Fitment: Ideal for custom applications, engine swaps, or replacing restrictive stock filters.

The K&N RU-4950 universal air filter is an excellent choice for enthusiasts looking to upgrade their intake system. Its dimensions make it suitable for various engine bays where space might be a constraint. Trust K&N's reputation for quality and performance to deliver an exceptional air filtration solution for your vehicle or equipment.

Upgrade your air intake today with the K&N Universal Air Filter RU-4950, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2007-2009 Ford Focus S
2007-2009 Ford Focus SE
2007-2009 Ford Focus SES
2009 Ford Focus SEL
2009-2011 Mitsubishi Lancer DE
2009-2011 Mitsubishi Lancer ES
2010 Mitsubishi Lancer Evolution SE
2010-2011 Mitsubishi Lancer Evolution GSR
2010-2011 Mitsubishi Lancer Evolution MR Touring
2010-2011 Mitsubishi Lancer GTS
2010-2011 Mitsubishi Lancer GTS Sportback
2010-2011 Mitsubishi Lancer Ralliart Sportback
2011 Mitsubishi Lancer ES Sportback
2012 Mitsubishi Lancer GT
2012 Mitsubishi Lancer GT Sportback
2012 Mitsubishi Lancer SE

Product Details

Product Description

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N Universal Air Filter RU-4950: High-Flow Performance for Various Applications

Enhance your engine's air intake with the K&N Universal Air Filter RU-4950. Engineered for versatility, this high-flow air filter is designed to fit a wide array of vehicles and equipment, from performance cars and motorcycles to generators and other specialized machinery. Its robust construction ensures durability and longevity, while its washable and reusable design offers excellent long-term value.

Product Specifications:

  • Flange Diameter: 2.5 inches
  • Base Diameter: 6 inches
  • Top Diameter: 5 inches
  • Height: 5.5 inches
  • Filter Type: Universal, conical shape
  • Material: High-quality cotton gauze media for superior filtration
  • Flange: Pliable rubber for secure, vibration-dampening fit
  • Washable & Reusable: Designed for repeated cleaning and use, reducing waste and cost.

Benefits of K&N Universal Air Filters:

  • Increased Airflow: Allows more air into the engine, potentially improving horsepower and acceleration.
  • Superior Filtration: Captures contaminants effectively while maintaining airflow.
  • Durable Construction: Built to last with strong materials and a flexible rubber flange that can stretch up to 1.5mm for a secure fit.
  • Easy Maintenance: Can be easily cleaned and re-oiled using K&N’s Recharger® kits.
  • Versatile Fitment: Ideal for custom applications, engine swaps, or replacing restrictive stock filters.

The K&N RU-4950 universal air filter is an excellent choice for enthusiasts looking to upgrade their intake system. Its dimensions make it suitable for various engine bays where space might be a constraint. Trust K&N's reputation for quality and performance to deliver an exceptional air filtration solution for your vehicle or equipment.

Upgrade your air intake today with the K&N Universal Air Filter RU-4950, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2007-2009 Ford Focus S
2007-2009 Ford Focus SE
2007-2009 Ford Focus SES
2009 Ford Focus SEL
2009-2011 Mitsubishi Lancer DE
2009-2011 Mitsubishi Lancer ES
2010 Mitsubishi Lancer Evolution SE
2010-2011 Mitsubishi Lancer Evolution GSR
2010-2011 Mitsubishi Lancer Evolution MR Touring
2010-2011 Mitsubishi Lancer GTS
2010-2011 Mitsubishi Lancer GTS Sportback
2010-2011 Mitsubishi Lancer Ralliart Sportback
2011 Mitsubishi Lancer ES Sportback
2012 Mitsubishi Lancer GT
2012 Mitsubishi Lancer GT Sportback
2012 Mitsubishi Lancer SE

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