Features 1、Universal oxygen sensor spacer, allows you to check engine light to fix M18 x 1.5 sensor vulnerability. 2、With dedicated tools, perfect accuracy and repeatable thread, a must need for vehicles running at high flow. 3、This kit can be used in few different ways with straight and 90‑degree adapter. 4、Comes with multi‑part O2 sensor gasket which can well work with standard M18x1.5 oxygen sensor. 5、Support straight bolt‑on installation, no modification needed, requires no complicated tools. Specifications: Item Type: Oxygen Sensor Spacer Material: Stainless Steel Thread: M18 x 1.5 Application: Universal for various car models Fit for 2 bolt type secondary oxygen sensor(Fit for Tacoma, etc.and other models uses this flange form) Package List 4 x Oxygen Sensor Extension Accessories 2 x Gasket