The Corvette Manifold Air Temperature Sensor is an integral part in managing your air/fuel mixture ensuring that you maintain proper performance characteristics. A faulty on can cause Malfunction Indicator Lights (MIL) and wreck havoc on you gas mileage. These units are brand new direct replacement parts for precise fitment. Get the most out of your Corvette. Order you 1985E C4 Corvette Manifold Air Temperature (MAT) Sensor today.