Original factory replacement high-flow intake air filter for Porsche 911 (996/997 platform, 1998–2008 models), suitable for the original single intake air filter box of 3.4L/3.6L/3.8L horizontally opposed six-cylinder engines; achieving a balance of precise filtration and high intake efficiency with multi-layer viscous cotton fabric media; supporting repeated cleaning and regeneration, without the need for modification, it can enhance the power response and throttle sensitivity of the sports car, compliant and not affecting vehicle warranty, and compatible with the original intake system.