ApplicationCompatible for Audi A6 Quattro 2.7L 2000-2006 compatible for Audi Allroad Quattro 2.7L 2001-2005 compatible for Audi S4 2.7L 2000-2002OEMandPart Number078906601H, 078 906 601H, 078 906 601 H 0 580 000 023, 0580000023SpecificationsWarranty: one year warranty for any manufacture defect Condition: Brand New Placement on Vehicle：FrontPackage Includes1 Piece Secondary Air Injection Smog Air Pump 3 Pieces Air Pump MountNoticeInstruction is not included. Professional installation is recommended Contact us please for whatever we can help.SpecificationOEM No.: 078906601H, 078 906 601H, 078 906 601 H 0 580 000 023, 0580000023 Warranty: one year warranty for any manufacture defect Condition: Brand New Placement on Vehicle：Front Quantity: 1 Piece Secondary Air Injection Smog Air Pump 3 Pieces Air Pump MountNoteInstruction is not included. Professional installation is recommended Contact us please for whatever we can help.