Using these engine mounts is straightforward. First, make sure your vehicle is the right model as listed in the fitment information (2015 - 2021 Subaru WRX, 2013 - 2020 Subaru BRZ, 2012 Subaru Legacy GT, or 2014 - 2018 Forester XT with FA/FB engines). Remove the old soft rubber mounts and replace them with these new ones. The bolts are strong, but use the right tools and follow proper safety procedures when installing. Since the engine noise will be a bit louder, be prepared for that change in your driving experience. For maintenance, periodically check the powder - coated finish. If there are any signs of chipping or wear, you can touch up the coating to keep it in good condition. These mounts are durable, but if you notice any issues like excessive looseness or damage, contact the manufacturer for further advice. They come with a 2 - year warranty, so you're covered for any manufacturing - related problems during that time.