Feature: Resolve high fuel consumption, power loss, by replacing your worn-out sensor. Enjoy a smoother drive engine efficiency. This sensor delivers critical oxygen-level data to your car's computer (ECU), enabling it to constantly adjust the air-fuel ratio for maximum fuel efficiency Engineered with a durable body and an anti-corrosion connector to reliably withstand high-temperature. This is a non-OEM product, accessory only! Specification: Material: Metal, Plastic Installation Position: Upstream & Downstream OE Number: 2345044/2345043/2344466/2344489 Fitment:for Mazda CX-7 2010 2011 2012Professional installation Disconnect battery for safety. Find sensor on the pipe; disconnect wiring. Spray threads with penetrant; remove with sensor socket wrench. Hand-tighten new sensor, then secure with a wrench. Reconnect wiring and battery to complete. Package included:2 Pcs Oxygen Sensor
