Exhaust Back Pressure Tester Exhaust Back Pressure Tester

Features and Benefits: Test For Clogged Or Obstructed Catalytic Converters and Mufflers Fast and Easy To Use Threads Into Oxygen Sensor Port Gauge Measures 2-1/2 Diameter and Has Dual Scale: 15 Psi and 1.00 Kg/Cm2 Hose Is 41 Long Kit Includes 12Mm and 18Mm Adapters To Fit Most Domestic and Imported Vehicles. No Need To Tap Into Exhaust System Then Reseal Holes Afterwards. Packed In A Vinyl Pouch For Store Display and Tool Box Storage. Complete With Instructions.