The Facet Exhaust Pressure Sensor - 103319 is a sensor designed to measure the pressure in a vehicle's exhaust system. It is a small, compact device that can be easily installed in the exhaust pipe. The sensor is made of durable materials and is able to withstand high temperatures and harsh conditions. It accurately measures the pressure of the exhaust gases and sends this information to the vehicle's engine control unit, allowing for optimal performance and fuel efficiency. This sensor is essential for monitoring and controlling the exhaust system, ensuring that it is functioning properly and meeting emissions standards.