Using the K&N intake kit is easy. First, find a suitable place in your car's engine bay for the filter. It can be directly attached to the engine carburetor or throttle body, or you can use the tube assembly to connect it indirectly. Make sure all connections are tight to prevent air leaks. When it comes to maintenance, the filter can go up to 100,000 miles before it needs cleaning. However, if you notice a decrease in performance or if the filter looks very dirty, it's a good idea to clean it earlier. You can use a K&N filter cleaning kit to do this. Remember, 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 any legal issues.