Bullet Points: 1,Easy Installation: It is suitable for installation positions in small spaces. Easy to install, can be directly bolted, no need to modify. 2,Great Durability: A practical accessory used for direct replacement, strong and durable in use. 3,Exclusive Design: 90 degrees design, larger internal space, better O2 reading, better air degreasing effect. 4,Practical Part: The built-in catalytic converter eliminates the need to check the engine light (CEL) after modifying the exhauster or disassembling the catalytic converter. 5,Useful Accessory: A practical solution to solve the problem of P0420/P0042 fault codes. Description: ThisO2celfixactuallyhasaminiaturecatalyticconverterbuiltinsideandwillhelpgetridofthatannoyingcheckenginelightyougetaftermodifyingyourexhaustorremovingyourcatalyticconverter,andsometimesevenwheninstallingahighflowcatalyticconverter. Don'ttakeachanceonusinganextensiononlyasoftentheydonotwork,thisisarealminiCatalyticConverterbuiltintoit. ThisO2celfixwithminiaturecatwilltrickyourECUintothinkingthestockcatalyticconverterisstillinstalled.Whenyouremoveyourcatalyticconverter,yourpostO2sensorwillseehighertemperaturesandgreaterflowofunburntfuel. Asaresultthiswillthrowcheckenginelights(Cel,SES,DTC)typicallytheerrorcodeswillbeP0420(CatalystSystemEfficiencyBelowThresholdBank1)and/orP0430P0420-CatalystSystemEfficiencyBelowThresholdBank2).ForOFFROADuseonly. Specifications: Splittype: Length:about61mm/2.40inches Material:Iron Color:silver Weight:about255g Applicablemodels:universalfit SuitableformostvehicleswithM18X1.5thread. Ordinarytype: Weight:about72g Material:Iron Thread:M181.5 Color:silver Material:Metal Applicablemodels:universalfit InstallationSteps: Jackupcarifnecessary,findextendedbungwhichneedtoreplace. LoosenoldO2sensorspacer,boltitonnew90degreesensorspacer. Boltnewsensorspacertopipebyhandfirstly.Tightenwithawrench. SymptomofP0420/P0042CodesFaulty: UsesanOBD-IIscannertoretrievetroublecodesstoredbythePowertrainControlModule(PCM).FaultycatalyticconverteristhemostcommonreasontocausefaultcodesP0420/P0042.Thereare4commonindicatorsoffaulty. 1.CheckEngineLightison. 2.Lackofpoweraftervehiclewarmsup.3.Speedofvehiclemaynotexceed30-40mph. 4.Rotteneggsmellcomingfromtheexhaustpipe. Installouroxygensensoradapterwhichincludesminiconvertercouldhelpsolvetheproblem. PackingList: 1*SetofOxygenSensorSplitType Or 1*OxygenSensor Notes: Duetothelightingeffectsandshootingangles,thecoloroftheitemandthatshowninthepicturemighthaveanuance.Duetomanualmeasurement,theremightbeatoleranceintheproductsize. Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.