Chevrolet S10 V6-4.3L 2003-2004 Downstream. GMC Sonoma V6-4.3L 2003-2004 Downstream. Chevrolet Blazer V6-4.3L 2003-2005 Downstream. GMC Jimmy V6-4.3L 2003-2005 Downstream. ● High Performance - Oxygen Sensor Features double protection layer, aluminum oxide trap layer, PTFE filter, and stainless steel housing.