Black Cotton Hi Flow Air Filter Assembly 11" x 5", 5-1/8" neck,
SKU: AF2251-3130
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Flexible returns
Key Features
- Flat base design for straightforward mounting on flat surfaces, simplifying installation on a wide range of manifolds and adapters
- Base flange: 5-1/8" (130mm) ensures a secure fit on compatible adapters
- Top style: Full Flow Cotton Element Top Lid for efficient air distribution across the filter media
- Black washable cotton element — reusable filtration that supports ongoing performance and cost savings
- Overall dimensions: width 11" (280mm); overall height 7" (177mm); filter element height 5" (127mm)
- Neck compatibility: 5-1/8" Holley neck
- Durable black finish resists wear and blends with performance builds for a cohesive look under the hood
Why it matters
Maximized airflow through a full-flow design helps support stronger throttle response and potential horsepower gains on compatible engines. The 11" wide intake and 5-1/8" neck provide a generous opening without adding unnecessary bulk, making it a practical upgrade for performance-minded builds.
Ideal use and compatibility
Designed for Holley-style applications requiring a flat-base air filter with a wide 11" intake and a 5-1/8" neck. This assembly is well-suited for performance-focused setups where a reusable, high-flow filtration solution is preferred without compromising mounting practicality.
Care and maintenance
The filter uses a black washable cotton element, allowing repeated cleaning and reuse to maintain performance over time. Regular inspection and cleaning help sustain airflow and filtration efficiency.
Specifications at a glance
- Overall width: 11" (280mm)
- Filter element height: 5" (127mm)
- Overall height: 7" (177mm)
- Base flange: 5-1/8" (130mm)
- Base type: Flat
- Top lid: Full Flow Cotton Element Top Lid
- Neck: 5-1/8" Holley neck