Features: Precise engineered M18x1.5 oxygen sensors adapter extends wiring harness length for optimal O2 sensors positioning, enhancing fuels efficiency and engine performances. Stainless steel construction withstands 800°F exhaust temperatures with corrosions resistant properties, featuring 45mm extension length and precise cut threads for airtights sealing. Ideal for automotive technicians, performances enthusiasts, and DIYers modifying exhaust systems or resolving oxygen sensors positioning challenges in compact engine bays. Essential for catalytic converter replacements, or exhaust pipe upgrades requiring sensors relocation without compromising signals accuracy. Includes anti seize compatibility for effortless installation, preventing thread galling while maintaining stable signals transmission between O2 sensors. Specifications: Component: metal Size: Approx.8x5x2.2cm/3.14x1.96x0.86inch Size: Approx.10x7.5x3cm/3.93x2.95x1.18inch Size: Approx.8.5x8x3.5cm/3.34x3.14x1.37inch Size: Approx.8x7.5x3.5cm/3.14x2.95x1.37inch Size: Approx.4.5x4x4cm/1.77x1.57x1.57inch Styles:As Picture Shown Package Includes: 1pcs Oxygen sensors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.