Features: 1.Universal Component: The heavy duty O2 sensor extension adapter is extensively universal for various brands and models of cars, better meet you demands. 2.Powerful Function: The oxygen sensor extension adapter can greatly increase the distance between the O2 sensor and exhaust system, bring you more convenience. 3.Perfect Accuracy: The O2 sensor extender adapter features M18x1.5 thread pitch and 50mm length. The thread is made with dedicated tool for high accuracy and repeatability. 4.Easy to Install: The oxygen sensor extension fitting is design with direct bolt?on installation (bolt is not included) without any modification, fast and convenient. 5.Premium Materials: The O2 sensor extender spacer is carefully made of high quality iron materials with high strength and durability, can be used for a long term. Specification: Item Type: Oxygen Sensor Extension Adapter Material: Iron Length: Approx. 50mm/2.0in Base Diameter: Approx. 24mm/0.9in Thread Size: M18x1.5 Application: Universal PackageList: 1 x Oxygen Sensor Extension Adapter