Features: 1.M18*1.5 thread pitch, 32mm length Oxygen Sensor Extender Spacer Bungs Adapter 2.These are needed when using a HHO System or a test pipe. They are also used to lean out your vehicle for better gas milage 3.Increases the distance between the O2 sensor and exhaust system 4.Universal fitment for most vehicles with the M18*1.5 O2 sensor hole 5.Threads made with dedicated tool, perfect accuracy and repeatability Specification: Features:_x000D_ _x000D_ M18*1.5 thread pitch, 32mm length Oxygen Sensor Extender Spacer Bungs Adapter. _x000D_ These are needed when using a HHO System or a test pipe. They are also used to lean out your vehicle for better gas milage. _x000D_ Increases the distance between the O2 sensor and exhaust system. _x000D_ Universal fitment for most vehicles with the M18*1.5 O2 sensor hole. _x000D_ Threads made with dedicated tool, perfect accuracy and repeatability. _x000D_ Easy installation, direct bolt-on, no modification needed. _x000D_ Made of high quality iron, high strength and durability. _x000D_ _x000D_ Specifications:_x000D_ Material: Iron_x000D_ Color: Silver_x000D_ Thread Size: M18*1.5_x000D_ Length: 32mm/1.3in_x000D_ Hex: 22mm/0.9in_x000D_ Item Quantity: 2Pcs_x000D_ Package Weight: approx.58g/2oz_x000D_ Fitment: Universal_x000D_ Application: for oxygen sensor extension_x000D_ _x000D_ Package List:_x000D_ 2 * Oxygen Sensor Adapter PackageList: