Milltek HJS Tuning ECE Downpipes – 63.5mm (2.5″)

Audi S4 Saloon (B9; 2016-), Avant (B9; 2016-) 3.0 TFSI V6 Quattro - Sport Diff Models



The HJS tuning ECE Downpipes are specifically designed to be fully road legal within Europe (R103 compliant) while still providing the benefits of the High Flow Sports Cat. HJS ECE Cats do not require engine ECU software upgrades and will not trigger a check engine light, ranging between 200 to 300 cells and designed to fit with the OE cat back system or Milltek Sport cat back systems.

EC Approved

SKU: SSXAU725*

£2,806.56 exc VAT
£3,367.87 inc VAT

The HJS tuning ECE Downpipes are specifically designed to be fully road legal within Europe (R103 compliant) while still providing the benefits of the High Flow Sports Cat. HJS ECE Cats do not require engine ECU software upgrades and will not trigger a check engine light, ranging between 200 to 300 cells and designed to fit with the OE cat back system or Milltek Sport cat back systems.

All our performance exhaust systems are designed with you in mind, and we cater to an ever-expanding range of vehicles. We believe in continuous evolution, and our research & development team work throughout the year to deliver the most in demand solutions to all your performance exhaust requirements. All of our products are made in the UK and distributed to more than 90 countries worldwide, making Milltek Sport one of the most accessible performance aftermarket brands on the market.



  • 90811140


SKU SSXAU725
Milltek Product type Downpipes, Sport Cats & Manifolds
Resonated Not Applicable
Tip Finish Not Applicable
Tip Shape Not Applicable
Pipe Diameter 63.5mm (2.5")
EC Approved Yes
Off Road Use Only No