Description
- Quickly test back pressure and clogged or obstructed catalytic converters
- Three stage Oxygen Sensor Port Adapter has 12MM and 18MM thread sizes to fit most domestic and import vehicles
- The standard 1/4″-20 tip provides the ability to test through the exhaust pipe when O2 sensor ports are inaccessible
- High temperature silicon hose prevents damage to tester from high exhaust temperatures
- Pipe tap set not included
