[Universal Oxygen Sensor Adapter]Most modern vehicles are equipped with M18x1.5 mm threaded oxygen sensors. You can can easily screw your oxygen sensor into the spacer and then the spacer into your exhaust.[Sturdy Iron]The O2 oxygen sensor spacer is made of high quality iron,designed for road and track construction,strong and durable,high strength and durability; Threads use of dedicated tool,perfect accuracy and repeatability.[Quick and Easy Installation]M18 * 1.5mm long motor light eliminator adapter,50mm length. Easy straight bolt-on installation with NO modifications needed.[Main Function]O2 oxygen sensor spacer mainly increases the distance between the O2 sensor and the exhaust system. The interior contains a Mini Catalytic Converter.Eliminate that check engine light with this CEL Fix.If You Have Any Questions about The Item,Plz Contact Me by Email and I Will Reply ASAP.Best Wishes[Universal Oxygen Sensor Adapter]Most modern vehicles are equipped with M18x1.5 mm threaded oxygen sensors. You can can easily screw your oxygen sensor into the spacer and then the spacer into your exhaust.[Sturdy Iron]The O2 oxygen sensor spacer is made of high quality iron,designed for road and track construction,strong and durable,high strength and durability; Threads use of dedicated tool,perfect accuracy and repeatability.[Quick and Easy Installation]M18 * 1.5mm long motor light eliminator adapter,50mm length. Easy straight bolt-on installation with NO modifications needed.[Main Function]O2 oxygen sensor spacer mainly increases the distance between the O2 sensor and the exhaust system. The interior contains a Mini Catalytic Converter.Eliminate that check engine light with this CEL Fix.Stainless Steel