TA Technix universal straight mini catalytic converter lambda sensor eliminatorTA Technix universal straight mini catalytic converter lambda sensor eliminator Function: The lambda sensor eliminator with mini catalytic converter provides a remedy if the cleaning function of the catalytic converter within the downpipe is not sufficient. Or if a catalytic converter is not present in the first place, for example with downpipes without a catalytic converter or a corresponding dummy catalytic converter. Size: M18x1. 5 thread. Hexagon: