Using the Mishimoto turbo blanket on your 2015 - 2021 Subaru WRX is easy. Just carefully install it around the hot side of the turbocharger following the provided instructions. When using the car, keep in mind that this blanket is designed to hold in heat, so don't be alarmed if the area around the turbo seems a bit warmer than usual. For maintenance, regularly check the blanket for any signs of wear or damage. If you notice any fraying or holes, it might be time to replace it. Also, keep it clean by gently wiping it down with a dry cloth. Avoid using any harsh chemicals or high - pressure water as they could damage the fabric.