The all new 827 Series (827-685) HPS Performance Air Intake Kit for Volkswagen Golf / GTI MK4 1.8T Turbo 2000-2006 offers a 2-3/4 free-flowing aluminum tube induction system "engineered to produce dyno Proven Performance Gains - Increase horsepower by 7.8Wh, torque by 7ft/lbs and improve throttle response while maintaining a safe air/fuel ratio Coated steel heat shield heavy-duty powder coater integrates with the factory cool air intake to direct cold air to the air filter for the best cooling effect.The included installation manual has clear pictures and instructions to guide installation. installer through the process Kit does NOT require adjustment or tripping the CEL light No modifications are required during installation Lightweight mandrel bent aluminum HPS Alloy tubing replaces box original restrictive air and optimizes airflow with an ex excellent heat dissipation and long service life. industrial grade silicone hoses and 100% stainless steel T-clamps that ensure reliability even in the most extreme riding conditions. The all-new HPS Performance Air Filter is designed with performance in mind, providing excellent filtration without sacrificing airflow. All HPS Performance air filters are made in the USA. Features and Specifications of the HPS Performance Air Intake Kit - Delivers Dyno Proven Performance Gains - Increases Horsepower by 7.8 Wh, Torque by 7 ft/lbs and Improves Throttle Response. Tuned by HPS Performance to provide the maximum performance output through the high end powerband - Features HPS Performance proven reinforced silicone hoses and industrial grade 100% stainless steel T-clamps - The tubing is 2-3/4" mandrel bent aluminum replaces the stock restrictive airbox and maximizes airflow with excellent heat dissipation and long life - Powder coated steel heat shields s 'Integrate with fresh air scoops which direct fresh air to the air filter for better cooling effect - Includes all new HPS Performance Air Filter (washable and reusable) - Includes step-by-step installation manual Easy-to-follow step-by-step with clear images and instructions to guide the installer through the process - No modifications are required during installation.