Using the Torque Solution Short Shifter Adapter and Bushing Combo is straightforward. First, gather the proper tools as mentioned in the product description. Carefully remove the stock shifter plate and rubber shift bushing from your 2015 - 2024 Subaru WRX. Then, install the new adapter and bushing in their place. Make sure all connections are secure. When driving, you'll immediately notice the smoother and more precise shifts. As for maintenance, since the adapter is made of zinc - coated CNC steel, it's quite durable. However, it's a good idea to check the connections periodically for any signs of looseness. If you notice any abnormal play or shifting issues, it might be time to double - check the installation. Also, keep the parts clean to ensure optimal performance. Remember, this product comes with a limited lifetime warranty, so if you have any major problems, reach out to the manufacturer.