(Pack of 2) 90-Degree Steel O2 Oxygen Sensor Spacer Adapter -"Check Engine Light Fixer" Short Straight Fitting; Works With Any Deep M18-Threaded Oxygen Sensor O2 sensor Threads Into 90-Degree Female Bend Designed For Spacer Clearance Issue And Convertion Into 3 Different Configurations Made From Mild Steel For Strength & Durability