Milltek Sport (Audi, RS3 Sportback 400PS) Large-Bore Downpipe and Hi-Flow Sports Cat

Milltek Sport's large-bore downpipe for the Audi RS3 Sportback 400PS replaces the factory downpipe with a genuinely larger-diameter, less restrictive design, constructed from T-304 stainless steel throughout for long-term durability. Reducing backpressure at this point in the exhaust system typically delivers one of the most noticeable power and response gains available on a turbocharged platform, particularly when paired with a supporting ECU tune.

This version retains genuine catalytic converter function via a high-flow sports cat, a sensible middle ground for those wanting improved flow while staying closer to factory emissions compliance than a full de-cat pipe.

Compatibility

• Audi RS3 Sportback 400PS