Material: High-quality alloy oxygen sensor, wear-resistant and durable. The material does not easily deform or break, ensuring a long service life. Easy Installation: Quick and easy installation, direct screw connection, no modifications required. The 90-degree oxygen sensor improves engine response and performance. Unique Design: The silver-colored surface gives it a very attractive and unique appearance. It fits your car perfectly. You can also give it as a gift to family and friends. Applicability: Ideal for most vehicles. With this M18 x 1.5 mm threaded spacer, you can easily screw the oxygen sensor into the spacer and then the spacer into the exhaust pipe. Function: The oxygen sensor can be used to improve fuel efficiency by reducing harmful emissions. It can improve engine response and performance. Product Specifications: Material: Nickel-plated galvanized iron. Dimensions: M18 x 1.5 mm internal thread diameter. Applicable: Various GM models. Weight: 266 g/set. Function: Checks for low engine light (M18 x 1.5 sensor). Advantages: Sealed, wide clamping range, dustproof and waterproof.