2004 Audi A8 Quattro Sedan 4.2L	For Vehicles Where Last 6 Digits of VIN Number are Less Than 012700. 
2005-2007 Audi A8 Quattro Sedan	4.2L, 6.0L	
2008-2009 Audi A8 Quattro Sedan	4.2L For Vehicles with Option Code(s) 12-cylinder AND PR-7K0, OR PR-7K3, OR 7K4, OR 7K5, OR 8-cylinder AND PR-7K0. 
2008-2009 Audi A8 Quattro Sedan	6.0L For Vehicles with Option Code(s) 12-cylinder AND PR-7K0, OR PR-7K3, OR 7K4, OR 7K5. 
2010 Audi A8 Quattro Sedan 4.2L, 6.0L For Vehicles with Production Date After 01/14/08. 
For Vehicles with Option Code(s) 12-cylinder AND PR-7K0. 
2007 Audi S8 Sedan 5.2L	
2008-2009 Audi S8 Sedan	5.2L For Vehicles with Option Code(s) 12-cylinder AND PR-7K0, OR PR-7K3, OR 7K4, OR 7K5. 
2010 Audi S8 Sedan 5.2L	For Vehicles with Production Date After 01/14/08. 
For Vehicles with Option Code(s) 12-cylinder AND PR-7K0.