Denso 234-4505 Oxygen Sensor 2011-2011 &gt; Mazda &gt; 3 &gt; L4 2.5L 2488cc &gt; US & Canada; Position: Downstream 2012-2012 &gt; Mazda &gt; 3 &gt; L4 2.5L 2488cc &gt; Position: Downstream 2012-2012 &gt; Mazda &gt; 5 &gt; L4 2.5L 2488cc &gt; Position: Downstream ** NOTE: PRODUCT IMAGE MAY NOT BE VEHICLE SPECIFIC