Using this COBB 4 Bar MAP Sensor Upgrade Kit is easy. First, refer to the included installation guide. It will walk you through the process of attaching the billet aluminum adapter to your Subaru's throttle body. Make sure to use the provided o - ring and hardware to prevent any leaks. Then, connect the pressure sensor to the adapter using the OEM quality plug - and - play connector. This kit is designed to be plug - and - play, so you can quickly get it up and running. When it comes to maintenance, keep an eye on the sensor for any signs of damage or wear. The sensor has a very low error rate, but if you notice any inaccurate readings, it might be time to check the connections. Avoid exposing the sensor to extreme temperatures or harsh chemicals as this could affect its performance. If you're not sure about any part of the installation or maintenance, you can always refer back to the installation guide or contact COBB Tuning for support.