The aFe Momentum Pro 5R intake system for the F8X S55 platform is a sealed cold-air design built to improve airflow and throttle response while maintaining OEM-style fitment. It uses a high-flow Pro 5R filter element and installs as a direct bolt-on upgrade, retaining factory sensor locations and mounting points. Ideal for stock or tuned cars where you want improved response and sound without compromising drivability.