Produktinformationen "Milltek SSXAU271 Cat-back Twin 80mm GT80 - Audi A4 3.0 TDi B8 quattro Saloon and Avant (2008 - 2011)"
Quad Outlet. Requires S-Line rear bumper in addition to S4 3.0T lower spoiler (part # 8K0 807 521 B 1RR) and detailing strip (part # 8T0 807 791 2ZZ) - approximately £100+VAT - from your local Audi dealer