Using this exhaust is straightforward. Just have it installed by a professional mechanic. When driving, you'll immediately notice the improved sound and performance. As for maintenance, it's recommended to clean the exhaust regularly with a mild soap and water solution. Avoid using harsh chemicals that could damage the stainless - steel finish. Check the welds periodically for any signs of wear or damage. If you notice any unusual noises or vibrations, have it inspected by a professional right away. Keep in mind that this exhaust is designed for the 2014 - 2015 Infiniti Q50 AWD/RWD models, so make sure it's compatible with your vehicle before installation.