WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.Enhance the performance of your B9 Audi S4, S5, or SQ5 with the RacingLine Drop-In High-Flow Air Filter, engineered to increase airflow, improve throttle response, and optimize fuel efficiency. This direct-fit OEM replacement is a simple yet effective upgrade that delivers real performance gains without voiding your warranty.
Why Upgrade to the RacingLine High-Flow Air Filter?
- Increased Airflow & Power – Replaces the restrictive factory paper filter with a high-flow, reusable Trifoam filter, allowing your 3.0 TFSI turbocharged engine to breathe more efficiently.
- Dyno-Tested Gains – Proven to deliver an additional 20Nm of torque, improving mid-range power and overall driving performance.
- Advanced Trifoam Filtration – Features triple-layer polyurethane foam, ensuring maximum filtration with minimal airflow restriction—the same technology used in Formula 1 engines.
- Improved Fuel Economy – Optimized airflow results in better combustion efficiency, helping to enhance fuel mileage.
- OEM-Quality Fit & Finish – Handcrafted in the UK to factory standards, featuring a precision-engineered plastic mount for a perfect seal and long-lasting durability.
Direct Fit, Maximum Performance
The RacingLine Air Filter is a simple drop-in replacement that fits seamlessly into your factory airbox—no tuning required. Its non-sealed end and larger surface area significantly boost airflow compared to stock, unlocking a more responsive and enjoyable driving experience.
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