Using the OLM S - line Triple Gauge Pod is easy. First, gather all the necessary tools and your gauges. Start by removing the OEM top cover of your 2015 - 2021 Subaru WRX or STI. Then, place the gauge pod in its position. If you're using 60mm gauges, simply insert them into the holes. For 52mm gauges, check if they need adapters, adhesive, or rubber rings for a proper fit. Once the gauges are in place, use the included self - tapping screws to secure the pod. As for maintenance, clean the carbon - fiber surface gently with a soft, dry cloth. Avoid using harsh chemicals as they may damage the glossy finish. Also, check the screws regularly to make sure they're tight and the gauges are properly mounted.