Using the Super Pro Front Alloy Control Arm Kit is quite straightforward. First, make sure your vehicle is a Subaru WRX from 2011 - 2014 or an STI from 2008 - 2014. The kit comes in pairs, so install one on each side of the front of your car. If you're not confident doing it yourself, it's a good idea to get a professional mechanic to handle the installation. Remember, this is a clearance item and is non - returnable, so double - check your vehicle's compatibility before purchasing. For maintenance, regularly check the control arms for any signs of damage or wear, like cracks or loose parts. You can also clean them with a mild soap and water solution to keep them in good condition. With proper use and care, this kit will keep your vehicle handling great for a long time.