Using your KEIN Rear X Brace is easy. First, gather all the necessary hardware that comes with the kit. You don't need to drill or cut anything, so just place the brace on both sides of the center tunnel behind the rear seats and secure it using the provided hardware. It's important to note that this brace can be installed with KSUB012, but they have different fastening and tying points. During normal use, you'll notice an improvement in the car's stability and traction. As for maintenance, the powder - coated finish is durable, but it's a good idea to regularly check the brace for any signs of damage or loose hardware. If you do notice any issues, you can take advantage of the 2 - year warranty. Keep driving and enjoy the enhanced performance of your Subaru!