Replacement for Audi A6 Quattro 2005-2006 V8 4.2L BNK, 2007-2011 V8 4.2L BVJ---UpstreamReplacement for Audi A8 Quattro 2007 W12 6.0L BSB---Upstream Cyl 1-3, From Chassis/VIN #4E7017 001Replacement for Audi S8 2007 V10 5.2L BSM---Upstream Cyl 1-3Reference
