Description
The K&N Filters X-Stream Top – 5-1/8″ ID x 14″ D x 2-3/4″ H x 1-1/4″ Drop Base (KNN66-3040) is designed for enthusiasts who demand high airflow and performance from their intake systems. Featuring a 5-1/8″ inlet, 14-inch diameter, and 2.75-inch height, this filter assembly includes a 1-1/4″ Drop Base (DRP) design and K&N’s X-Stream Top to maximize intake efficiency. Ideal for carbureted engines and custom builds, the filter supports increased horsepower without compromising engine protection. The washable and reusable design makes it a cost-effective, long-term solution for performance upgrades. Engineered for reliability and designed to work in high-demand environments, this model suits multiple muscle car and racing applications.
Features and Specifications:
- Inlet Diameter: 5-1/8 inches
- Diameter: 14 inches
- Height: 2-3/4 inches
- Drop Base: 1-1/4 inches
- Top Style: X-Stream
- Air Filter Color: Red
- Air Filter Material: Cotton Gauze
- Washable and Reusable: The Air filter can be washed and reused for extended use.
- Increased Filter Area: Top design adds extra filter surface for better performance.
- Improved Airflow: Enhances airflow for more efficient filtration.
- Warranty: 1 Year Limited






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