Using this light bar is easy. First, make sure you have the right driving lights that fit within the 6.5 - inch diameter and 0.5 - inch depth limit. Then, simply bolt the light bar onto your 2011 - 2014 Subaru WRX/STI. As you drive, enjoy the enhanced visibility it provides. When it comes to maintenance, keep an eye on the powder - coated finish. If you notice any chips or scratches, it's a good idea to touch them up to prevent rust. Also, check the bolts regularly to make sure they're tight. And remember, the driving lights are sold separately, so you'll need to get those on your own. Have a great and safe drive!