This exhaust back pressure tester utilizes M12 and M18 threaded adapters to connect directly to oxygen sensor ports for system diagnostics. The gauge displays readings in PSI and bar, using multi-colored bands to indicate acceptable pressure levels at idle and 2500 RPM. A 6' (1.8 m) hose provides the length required for a technician to monitor the gauge from the driver's seat during testing.

This exhaust back pressure tester utilizes M12 and M18 threaded adapters to connect directly to oxygen sensor ports for system diagnostics. The gauge displays readings in PSI and bar, using multi-colored bands to indicate acceptable pressure levels at idle and 2500 RPM. A 6' (1.8 m) hose provides the length required for a technician to monitor the gauge from the driver's seat during testing.