Weld-On O2 Sensor Bung & Blanking PlugOxygen Sensor Bung and Plug If you are installing the O2 sensor in your car and plan on keeping the stock one there to keep your ECU happy you will need to weld in a bung. M18 X 1. 5 Thread (both bung and plug).
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols