90 Degree O2 Oxygen Sensor Spacer Engine Light CEL Check Bung Mini Catalytic Converter GenericProduct Overview: 1. Built in M18 x 1. 5 miniature converter connector helps eliminate check engine lights caused by modified exhaust or catalytic converter removal 2. Constructed from zinc plated steel for high strength and durability 3. Integrated converter helps avoid triggering a CEL (Check Engine Light) 4. Notes: If the O2 sensor is highly sensitive, CEL may still appearthis product does not resolve all warning light issues 5. Easy, direct bolt