Torque Solution Titanium O2 Sensor Bung: Universal M18x1.5mm performance-upgrade Use the supplied silicone hose

Use the supplied silicone hose to connect to your gauge and then your all done

- Delrin polymer

3-inch exhaust

Torque Solution Pitch Stop Brace for the Subaru WRx / STI 2015-2021 is a must due to the weak OEM pitch stop bracket

Torque Solution Titanium O2 Sensor Bung: Universal M18x1.5mm performance-upgrade Use the supplied silicone hoseTorque Solution Titanium O2 Sensor Bung Applications: Universal M18 1. 5mm Sensors Torque Solution Titanium O2 Sensor Bung for M18x1. 5mm sensors. Our bung is CNC machined from a solid piece of TC4 titanium. Stepped design for 22mm ID hole. Looking to take your build to the next level, then Torque Solution quality titanium fabrication components is the key. CNC Machined TC4 (GR5 Ti 6Al 4 V) Titanium Threaded for M18x1. 5mm sensors Unique stepped