Audi RS4 B7 4.2 V8 Saloon Avant and Cabriolet (2006 and later)
HI-FLOW SPORTS CATS (SSXAU115) - ECU tuning required and must be fitted with the Milltek Sport cat-back system
Part Numbers:MSAU321, MSAU322
Description:LH Downpipe and 200 Cell Hi-Flow Sports Cat, RH Downpipe and 200 Cell Hi-Flow Sports Cat
Pipe Diameter: 63.50mm (2.50")
Product Code: SSXAU115