B2B PRODUCT
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
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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