Replacement for 2004-2011 Mitsubishi Endeavor V6 3.8L.. Package Include: 4Pcs Oxygen (2pcs Upstream & 2pcs Downstream) Sensor as Pictured. Product Advantages: Independent product design, core chip independent design and production, optimize engine performance, detect oxygen content, ensure the safety and stability of the car.. Installation method: Strictly according to the original size, no need to change, direct installation, factory simulated and durability testing to ensure proper fit and performance..
