Size: external thread M18 x 1.5 internal thread M18 x 1.5 length 60 mm 4.The O2 CEL curing of this small cat will make your ECU think that the converter is still installed. When it the catalytic converter, the O2 sensor will see an increase in temperature and an increase in unburned fuel. 5.For this , to check the engine light (CEL DTC), the typical error code is P0420 ( for system efficiency below the bank 1 threshold) and/or P0430 P0420 (a for system efficiency below the bank 2 threshold), use For off road use. 2.There is an integrated miniature catalytic converter in the O2 CEL fixture, which helps to this annoying by light inspection of the engine after changing the exhaust gas or removing the catalytic converter, and sometimes even when installing a high-flux catalytic converter. 3.The problem Should not seize the opportunity just because the length usually does not work, this is an actual integrated miniature catalytic converter. 1.Built in the micro catalytic converter, avoid checking engine lights after modifying exhaust or removing catalytic converter. 1 x parts. 💌If You Have Any Problem with This Item, Please Send Us First Message We Will Answer within 24 Business Hours and Will Give You A Satisfactory Solution If The One You Receive Doesn'T Turn Out to Be What You Expected, Please Contact Us, We'll Be Glad to Replace A New One or Give A Full Refund to You! *Made of high quality material, durable and practical to use *When you remove your catalytic converter, your post O2 sensor will see higher temperatures and greater of un-burnt fuel *As a result this will throw check engine lights (Cel, DTC) typically the error codes will be P0420 ( System Efficiency Below Threshold Bank 1) and/or P0430 P0420 - System Efficiency Below Threshold Bank 2). Fit for OFF ROAD *Material: SS304 + Stainless Steel Filter Mesh