Mazda 2 L4-1.5L 2011-2014 Downstream. Mazda 3 L4-2.0L 2004-2009 Downstream. Mazda 3 L4-2.3L 2006-2009 Downstream. Mazda 6 L4-2.3L 2006-2008 Downstream. ● High Performance - Oxygen Sensor Features double protection layer, aluminum oxide trap layer, PTFE filter, and stainless steel housing.
