2Pcs O2 Oxygen Sensor Upstream & Downstream For 05 06 Audi A4 A4 Quattro 3.0L

table.tableizer-table { font-size: 12px; border: 1px solid #CCC; font-family: Arial, Helvetica, sans-serif; } .tableizer-table td { padding: 4px; margin: 3px; border: 1px solid #CCC; } .tableizer-table th { background-color: #104E8B; color: #FFF; font-weight: bold; } Make Model Engine Year Notes AUDI A4 V6-3.0 2005 Left Side; 1Pcs Upstream + 1Pcs Downstream AUDI A4 QUATTRO V6-3.0 2006-2005 Left Side; 1Pcs Upstream + 1Pcs Downstream PORSCHE CAYENNE V6-3.2 2006-2004 Right Side; 1Pcs Upstream + 1Pcs Downstream