The price is for 1 x E-1992 only (they are sold individually).
 

Product Specifications
Height 6.063 in (154 mm)
Inside Diameter 3.438 in (87 mm)
Outside Diameter 5.438 in (138 mm)
Top Style Open
Top Material None
Flanges None
Package Quantity 1
Weight 1.1 lb (0.5 kg)

Product Box Height 7.13 in (181 mm)
Product Box Length 6.38 in (162 mm)
Product Box Width 6.38 in (162 mm)

Part Numbers
Audi 4E0129620D
Autopart International 5000232997
Autopart International 5000322271
Beck/Arnley 0421887
BMC FB54408
Carquest 83241
Hastings AF1565
Purolator A35630
WIX 49241

K&N Applications for E-1992 Air Filter
2010 Audi S8 5.2L V10 Fuel Injection, All (2 required)    
2010 Audi A8 Quattro 6.0L W12 Fuel Injection, All (2 required)    
2010 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2009 Audi S8 5.2L V10 Fuel Injection, All (2 required)    
2009 Audi A8 Quattro 6.0L W12 Fuel Injection, All (2 required)    
2009 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2008 Audi S8 5.2L V10 Fuel Injection, Non-US Models (2 required)    
2008 Audi A8 Quattro 6.0L W12 Fuel Injection, Non-US Models (2 required)    
2008 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2007 Audi S8 5.2L V10 Fuel Injection, All (2 required)    
2007 Audi A8 Quattro 6.0L W12 Fuel Injection, Non-US Models (2 required)    
2007 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2006 Audi S8 5.2L V10 Fuel Injection, All (2 required)    
2006 Audi A8 Quattro 6.0L W12 Fuel Injection, Non-US Models (2 required)    
2006 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2005 Audi A8 Quattro 6.0L W12 Fuel Injection, Non-US Models (2 required)    
2005 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2004 Audi A8 Quattro 6.0L W12 Fuel Injection, All (2 required)    
2004 Audi A8 6.0L W12 Fuel Injection, All (2 required)    
2003 Audi A8 6.0L W12 Fuel Injection, All (2 required)

Notes: Please make sure your filter isnt K&N E-0775 instead