Audi A3 1.8T 2WD 3 & 5 door 1996 2004 Large-bore Downpipe and De-cat Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap..
Audi S4 4.2 V8 quattro B6 Saloon/Sedan Avant & Cabriolet 2003 2005 Cat Replacement Pipes Manual Only. Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap..
Audi RS4 B7 4.2 V8 Saloon Avant and Cabriolet 2006 2008 Cat Replacement Pipes Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap..
Audi A3 2.0T FSI quattro 5 door SportBack 2004 2012 Large-bore Downpipe and De-cat Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap..
Audi A4 3.0 TDi B8 quattro Saloon and Avant 2008 2011 Cat-back 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..