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K&N E-3728R Air Filter
- Designed to increase horsepower and acceleration
- Designed for racing applications
- Washable and reusable lifetime air filter
- Dual cotton layers
- One year limited warranty
This K&N racing air filter is made with 2 layers of cotton and does not come oiled. It was designed to provide even lower air restriction than our replacement air filters for street vehicles. K&N racing air filters are washable and reusable and come with a one year limited warranty.