Keeping your exhaust system in check is crucial for smooth and safe rides. Luckily, the OEMTOOLS 37263 Exhaust Back Pressure Tester/Gauge makes it easy to test and diagnose problem areas in your exhaust system. With the back pressure exhaust tester, you can prevent sluggish engine performance, reduced acceleration, and excessive heat, thanks to the diagnostic abilities. The exhaust back pressure tester gauge allows users to test exhaust back pressure through the oxygen sensor. The oxygen sensor adapter with the exhaust pressure test is M12 and M18 thread and features a 2-1/2 inch easy-to-read gauge. The gauge with the catalytic converter pressure tester has 2 multi-colored bands to test idle and 2,500 RPM. It's easy to tell if you have a problem with the exhaust system with this catalytic converter test gauge: green is good, red is concerning. Higher readings on the catalytic converter pressure gauge could indicate a restriction that needs to be corrected. The pressure is shown in PSI and Bar. Diagnose whether you have a clogged catalytic converter or obstructed muffler with this car exhaust back pressure tester. The 6 foot hose with the back pressure test kit allows users to test from driver's seat, saving you the time and energy of getting down on the ground. With this automotive back pressure gauge tool, there's no need to drill into the exhaust system. Simply connect the catalytic converter back pressure tester to the oxygen sensor and get to testing. This is the perfect exhaust back pressure tester kit for auto experts, DIY mechanics, car dealerships, and more to help validate whether you have a restricted exhaust system, which can cause major problems. The exhaust back pressure tool can be secured in an included sturdy carrying case for easy transportation. Make your repairs easier and more dependable with this exhaust back pressure test kit.