aFe Momentum HD Pro 10R Replacement Air Filter, Part Number 20-91059

The Momentum HD is designed around a massive 1,000cfm performance 360 degree radial flow air filter with 10-layers of progressive cotton media producing 99.47% cumulative efficiency. The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. The air filter is wrapped in reinforced metal providing maximum strength to prevent filter collapse. Momentum Intake Replacement Air Filter w/ Pro 10R Media 6 IN F x 8 IN B x 8 IN T (Inverted) x 9 IN H

• 1000 cfm Performance 360 deg. Radial Flow Air Filter
• Wrapped In Reinforce Metal For Maximum Strength
• 10 Layer Progressive Cotton Gauze Oiled Media
• Unique Air Filter To Housing Interface
• Allows For Maximum Filter Size
• Increases Available Air Volume
• Easy Installation

The aFe Momentum HD Pro 10R replacement air filter is designed for high-performance automotive intake systems that require strong airflow and durable filtration. Its 1,000-cubic-feet-per-minute performance rating and 360-degree radial-flow design help provide increased air volume to the intake system. The 10-layer progressive cotton gauze media delivers 99.47% cumulative filtration efficiency while supporting consistent airflow under demanding operating conditions.

This aFe replacement filter uses a unique air filter-to-housing interface that accommodates a large filter element while simplifying installation. The reinforced metal wrap helps protect the filter media and prevents collapse during operation, supporting long-term durability. The inverted filter design is intended for compatible aFe Momentum HD intake assemblies and provides a direct replacement solution for maintaining the performance of the original system.

Important: This product is intended for automotive applications and is not CARB approved. A CARB acknowledgment may be required before purchase or installation. California emissions compliance should be verified for the specific vehicle and application. This product may also contain chemicals identified by California Proposition 65.

Key Product Specifications and Technical Data

• Brand: aFe
• Part Number: 20-91059
• Product Type: Replacement performance air filter
• Filter Design: 360-degree radial-flow, inverted cylinder
• Filter Media: 10-layer progressive cotton gauze, oiled Pro 10R media
• Performance Rating: 1,000 cubic feet per minute
• Filtration Efficiency: 99.47% cumulative efficiency
• Application: Compatible aFe Momentum HD intake systems

What's Included

• One aFe Momentum HD Pro 10R replacement air filter

Features:

• High-flow filtration: The 1,000-cubic-feet-per-minute 360-degree radial-flow design supports increased intake airflow.
• Efficient media: Ten layers of progressive cotton gauze oiled Pro 10R media provide 99.47% cumulative filtration efficiency.
• Reinforced construction: The metal wrap helps strengthen the filter and resist collapse during high-airflow operation.
• Simplified installation: The unique filter-to-housing interface allows a large filter element while supporting straightforward replacement.

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1