K&N's 57i Series induction kits are tailor - made for specific vehicles, liberating your car from the factory air box's size constraints. These cost - effective kits come in various forms, adapting to your vehicle's features and the available space under the hood. They're engineered to boost power across the entire RPM range. The open - air air filters in these kits have a larger surface area, offering more airflow with less restriction compared to K&N O/E replacement filters limited by the factory air box. The bigger filter can capture and hold more dirt, extending its service life up to 100,000 miles before a cleaning is needed. The filter attaches to the engine carburetor or throttle body, either directly or via a tube assembly. All adapters are crafted from high - quality materials like steel, aluminum, silicon, or reinforced nylon for long - lasting performance. Note that 57i Series Intakes are not legal for use in California and other US states following California emission standards. This part fits specific Volkswagen Beetle models from 2001 - 2005, including GL, GLS, GLX, Sport, and Turbo S sub - models.









Using the K&N 57i Series intake kit is straightforward. First, make sure your vehicle is turned off and cooled down. Locate the engine carburetor or throttle body where the filter will be attached, either directly or through the tube assembly. Carefully install the filter and all the adapters, ensuring they're properly connected. When it comes to maintenance, you won't have to worry about cleaning the filter too often. The large filter can go up to 100,000 miles before needing a clean. However, keep an eye on it for any signs of excessive dirt or damage. Also, remember that this intake kit is not legal for use in California and other states with California emission standards, so don't use it in those areas to avoid potential legal issues.