Pre cat oxygen sensor (Before Catalyst).Made By IDO V20760060
550i 2011-2016 \/ Pre Catalyst \/ Before Cat,550i xDrive 2011-2016 \/ Pre Catalyst \/ Before Cat,550i GT 2010-2015 \/ Pre Catalyst \/ Before Cat,550i GT xDrive 2010-2017 \/ Pre Catalyst \/ Before Cat
