S&B Filters 20-2943-01 Pre-Filter

The S&B Filters 20-2943-01 Pre-Filter is specifically designed to fit 5 x 9 inch and 6 x 9 inch air filters, enhancing the performance and longevity of your air intake system. Crafted in collaboration with Outerwears, this pre-filter offers a blend of style and functionality for automotive enthusiasts looking to protect their cold air intake systems.

Material and Construction

This pre-filter is constructed from a proprietary polyester mesh that features uniform micron openings, effectively filtering debris down to 0.005 inches. The material is treated with a hydrophobic water-repellent process, ensuring that moisture is deflected away from the engine during adverse weather conditions. Key attributes include:

• UV resistant and shatter-proof, maintaining integrity in extreme temperatures.
• Heat resistant up to 450 degrees Fahrenheit, making it suitable for high-performance applications.
• Puncture resistant with elastic properties, allowing the threads to return to their original position if impacted.
• Welded seams and reinforced industrial-grade thread to minimize potential failure points.

Water Repellency and Maintenance

The water-repellent feature of the S&B Filters 20-2943-01 is designed to prevent water ingestion during heavy rain or when driving through puddles. While it effectively repels water, it is important to note that it is not waterproof; if fully submerged, water can still enter the intake system.

To ensure optimal performance, it is recommended to replace the pre-filter every 6-12 months, depending on driving conditions and cleaning frequency. A simple test can be performed to check the effectiveness of the water repellency: spray the pre-filter with water; if it beads off, the repellency is intact. If water penetrates, it’s time for a replacement.

Airflow Efficiency

The hydrophobic water-repellent process used in the Outerwears pre-filters does not compromise airflow. Unlike aftermarket sprays that can inhibit air passage, this factory-applied treatment allows for maximum airflow while preventing water ingestion. Users can expect no negative impact on horsepower or fuel efficiency compared to non-water-repellent pre-filters.

• No airflow loss compared to non-water-repellent options.
• Factory process ensures reliable performance without the need for additional treatments.

For those looking to enhance the efficiency of their air intake system, the S&B Filters 20-2943-01 Pre-Filter is a practical solution that combines durability, protection, and ease of maintenance.