This oxygen sensor spacer is used to remedy the CEL (Check Engine Light) that occurs when an aftermarket catalytic converter is installed on a modern vehicle. The primary use of the spacer is to take your O2 sensor out of the exhaust stream so that your O2 sensor senses less oxygen in the exhaust pipe.
This is a universal product that works on variety of vehicles, however it is not effective on some cars.
This product is not intended to and will not provide emissions compliance.
This part does not guarantee that the CEL will turn off.