Bassani Xhaust O2 Sensor Port Plugs - 18mm

Bassani Xhaust O2 Sensor Port Plugs - 12mm

Daytona Twin Tec O2 Sensor Plug Steel 18mm x 1.5mm

Vance & Hines O2 Sensor Port Plug Kit - 18 mm

Vance & Hines O2 Sensor Port Plug Kit - 12 mm

Daytona Twin Tec O2 Sensor Plug Stainless Steel 18mm x 1.5mm

Bassani Xhaust O2 Port Bushing Adapters

Akrapovic P-LBSB1 O2 Sensor Port Plug - 18 mm x 1.5

Akrapovic P-LBSB4 O2 Sensor Port Plug - 12 mm x 1.25

Daytona Twin Tec Weld-In O2 Sensor Bung Steel 18mm x 1.5mm