K&N Engineering
ActiveOverview
K&N Engineering manufactures washable performance air filters, cold air intake systems, oil filters, and related products for cars, trucks, SUVs, motorcycles, ATVs, and industrial applications, offering over 12,000 parts.125 Headquartered in Riverside, California, the company operates facilities in Texas, England, the Netherlands, and China, and sells in over 90 countries with a focus on reusable high-flow cotton filters invented in 1969.25 It maintains involvement in motorsports such as NASCAR, NHRA, and Formula Drift.1
History
K&N Engineering was founded in 1969 by motorcycle racers Ken Johnson and Norm McDonald in Riverside, California, initially focusing on air filters for racing after developing a reusable oiled cotton design.15 The company shifted primarily to air filters, introduced bolt-on cold air intake kits in 1992, and expanded to oil filters, home A/C filters in 2019, and motor oil and wiper blades in 2021.1 It has sustained active participation in motorsports including NASCAR Pro Series, NHRA, and Formula Drift throughout its history.1
Product Lines
| Product Line | Positioning | Price Range |
|---|---|---|
| Performance Air Filters (washable high-flow) | aftermarket engine air filtration upgrade | $50 - $150 |
| Cold Air Intake Systems | bolt-on performance intake kits | $200 - $600 |
| Oil Filters (wrench-off design) | reusable performance engine lubrication | $10 - $30 |
| Cabin Air Filters | vehicle interior air purification | $40 - $80 |
| Fuel Filters | engine fuel system protection | $50 - $100 |
| Home A/C Filters (washable) | residential air filtration | $20 - $50 |
Manufacturing
K&N products are designed and manufactured on-site at its headquarters complex in Riverside, California, spanning nearly 400,000 square feet across 10 buildings.15 Additional manufacturing and distribution facilities operate in Grand Prairie, Texas, England, China, and the Netherlands.25
Notable Products
- High-Flow Air Filter - Reusable oiled cotton filter for increased airflow and engine performance.
- Cold Air Intake Kit - Bolt-on system introduced in 1992 to improve air intake efficiency.
- Performance Oil Filter - Wrench-removable filter for easier maintenance and engine protection.
- Cabin Air Filter - Washable filter for vehicle passenger compartment air quality.
- Home A/C Filter - Washable residential air conditioning filter line launched in 2019.
Reputation
K&N is recognized by enthusiasts for pioneering reusable high-flow air filters and strong motorsports involvement, with products noted for performance gains and lifetime warranties.125 Professionals value its ISO 9001 certification, rigorous testing, and global distribution, though some criticize potential filtration efficiency trade-offs for airflow in certain applications.4 The brand maintains a reputation for quality customer service and product durability among millions of users.5