O2 Oxygen Sensor Test Pipe Extension Extender M18 X 1.5

1pcs oxygen sensor & 1pcs Oxygen Sensor Extenderthese are neeeded when using a hho system or a test pipe. they are also used to lean out your vehicle for better gas mileage.they are very easy to install by unscrewing your O2 sensor from your exhaust then screw your sensor into the extender and then screw the two pieces back into your exhaust.the extender has A 7/8 hex head which is the same size as most O2 sensors and it makes them easier to install not like the straight sided extenders.fits most sensors with a1/2 inch diameter tip. the size of the extenders is M18 x 1.50 and they are 1.253 inches long and drilled out to .5175 inches. if you need more clearance you can stack them and they have a tapered seat no washer needed.Model:M18 x 1.5Universal for Any Thread Size Of 18mmStraight Bolt-On, No Modification NeededVery Easy to InstallThe catalyst can effectively reduce the power output of 2 to 3%, and the maximum power speed of up to 5%. Its removal and the use of emulator is the easiest way to low-cost raise of power; The emulator can also help in case of problems with the LPG installation, which due to the detection of very rich mixture will display the CHECK ENGINE on the dashboard.Features:Polished front surfaces enabling perfect tightening.Washer in the set, ability to adjust the angle of screwing in the extender.Threads are made with dedicated tool, perfect accuracy and repeatability.Exhaust gas inlet hole 2 mm; In extreme situations narrowing of the inlet hole prevents motor failure (driving at high speed).Perfect for tight awkward spaces, where there is no room for the straight extendersInstallation:Unscrew the lambda oxygen sensor, screw in the emulator in its place and then screw in the oxygen sensor.Extenders are fromColor: SilverMaterial: IronOxygen Sensor Extender size:Internal and External Thread: M18x1.5Height: 40mmPackage Contents:1 x oxygen sensor1 x Oxygen Sensor ExtenderOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.