Audi S1 2.0 TFSI quattro 2014 2018 Large-bore Downpipe and De-cat Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap.
Audi S1 2.0 TFSI quattro 2014 2018 Large-bore Downpipe and De-cat Must be fitted with the Milltek Sport cat-bac…