O2 Sensor Spacer with simple design for easy bolt-on installation without modification. Features M18x1.5mm threads, compatible with most standard oxygen sensors. Allows oxygen sensor to be screwed into the spacer and then into the exhaust. Constructed from polished metal for corrosion resistance and durability. Length: 3.2cm (1.26"). Universal fit for vehicles with M18x1.5mm threaded oxygen sensors. Suitable for use with high-flow catalytic converters, sport exhausts, down pipes, or straight pipes. Item Name: O2 Sensor Spacers Material: Metal Thread: M18 x 1.5 Features: Universal, Threaded, Easy Installation Size: Length: 3.2cm / 1.26" (Approx.) Note: Color may vary slightly due to lighting and screen settings. Slight dimensional variations may occur due to manual measurement. Package Includes: 2 x O2 Sensor Spacers