AEM's mild-steel wideband UEGO air/fuel ratio sensor bung is an economical solution for providing a sensor mount when installing a wideband UEGO AFR sensor in your exhaust. This bung must be welded into your exhaust system. For a more robust mounting solution please review our stainless steel wideband UEGO air/fuel ratio sensor bungs. This bung has an M18 x1.5 thread pitch. No welding equipment? That's no problem when installing a wideband sensor in your exhaust housing using our No-Weld Wideband UEGO O2 Sensor Mounts.
All warranty questions, claims or otherwise should be directed toward the manufacturer