Using this light bar is easy. You can either run it by itself or pair it with other lights to improve visibility when driving your 2003 - 2008 Subaru Forester. To install, it's just a matter of a simple bolt - on process. You can mount up to 4 driving lights on it, but remember the lights are sold separately and should be up to 6.5' in diameter and 1' in depth. When it comes to maintenance, the powder - coated finish helps protect it from rust, but it's a good idea to regularly check for any signs of wear or damage. If you notice any scratches on the coating, touch it up to keep the rust at bay. Also, make sure the lights are securely attached and working properly before each use.