Drop Engineering Engine Mounts for the 1990-1994 Mitsubishi Eclipse are assembled from powdercoated steel and come equipped with rigid polyurethane bushings, tested at a durometer of 75, to more efficiently transfer your vehicle’s power to the wheels. When you accelerate, there is a noticeable lag created with stock OEM mounts due to movement of the motor. Vehicles with Drop Engineering Performance Engine Mounts will see quicker engine response and easier shifting even at a higher RPM.