ApplicationCompatible for Audi A4 B8 2.0 TFSI A4 / A4 Quattro2.0L 2009-2011 compatible for Audi A5 2.0 TFSI A4 / A5 Quattro2.0L2010-2011 compatible for Audi Q5 2.0 TFSI 2.0L2011-SpecificationDownpipe diameter :3 inch / 76mm Pipe Inlet Size: 4-Bolt 3\" inch Pipe Outlet Size: 3-Bolt 2.8\" inch Condition: 100% Brand New Warranty: one year for any manufacture defects Package Includes: 1 X Downpipe Kit (You will get exactly as shown in the picture above)NoteProfessional installation is highly recommended (No Instruction Included) For any needs please contact us