When trying to get the most performance possible From your engine it may be desirable to bypass the catalytic converter or converters to Increase flow. However in a lot of modern vehicles, the post Cat O2/Lambda sensor/s will flag up a fault code as they detect that the catalysts are below usual efficiency.

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The second lambda sensor is used for monitoring the efficiency of the catalytic converter, by disabling the second lambda sensor it will allow a decat pipe to be used on a vehicle without Producing Any Fault Codes.

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Decatting a vehicle normally triggers a P0420 fault code (Catalyst System Efficiency Below Threshold (Bank 1)). Our Torxtuning lambda delete service will permanently remove this fault.