Milltek Audi HJS Tuning ECE Downpipes for 8S TTRS and 8V RS3
Upgrade your Audi 2.5 TFSI with the Milltek HJS Tuning ECE Approved Downpipes. Engineered in the UK, these Milltek downpipes are designed to improve exhaust flow, sharpen throttle response and unlock the sound and performance your Audi deserves, while maintaining ECE compliance for road use. Ideal as a premium performance exhaust upgrade for Audi RS3 8V and Audi TTRS 8S, this setup fits both Milltek Sport cat-back systems and the factory OE cat-back.
Whether you are searching for Audi RS3 downpipes, Audi TTRS downpipes, Milltek HJS downpipe, ECE approved catted downpipe, 2.5 TFSI downpipe, or UK Audi performance exhaust parts, this is the go-to choice trusted by enthusiasts. We have installed these systems and customer feedback has been consistently excellent for quality, fitment and drivability.
Why choose these Milltek HJS ECE Downpipes
- ECE approved HJS Tuning design for road-legal performance
- Optimised exhaust flow to support tuning and enhance sound
- Precision fitment for Audi 2.5 TFSI 5-cylinder models listed below
- Direct fit to Milltek Sport and OE cat-back exhaust systems
- High-quality UK engineering from Milltek Sport
Key specifications
- Pipe diameter: 2.50 in (63.55 mm)
- ECE Approved: Yes
- Compatibility: Fits Milltek Sport and OE cat-back systems
- Part number: SSXAU771
- Manufacturer: Milltek
Vehicle compatibility
- Audi TT Mk3 TTRS 2.5 TFSI Quattro (8S) – 2016 onwards
- Audi RS3 Saloon / Sedan 400 PS (8V MQB) – Non-OPF/GPF models 2017 to 2018
- Audi RS3 Sportback 400 PS (8V MQB Facelift only) – Non-OPF/GPF models 2017 to 2018
Keywords: Audi RS3 downpipe 8V, Audi RS3 non-OPF downpipe, Audi TTRS downpipe 8S, Milltek RS3 downpipe, Milltek TTRS downpipe, HJS Tuning ECE downpipe, catted downpipe Audi 2.5 TFSI, performance exhaust upgrade UK.
Fitment, installation and support
For professional installation and coding advice, we recommend fitting at Nforcd in Warwickshire. Request a fitting quote: Sales@nforcd.com.
Compatibility check: We verify fitment before dispatch. Provide your UK registration or last 7 digits of your VIN at checkout to ensure the correct parts for your vehicle.
About Milltek Sport
Milltek Sport has over three decades of UK-based design and manufacturing experience, developing high-performance exhaust components for Audi, Volkswagen, Porsche, BMW and more. Their involvement with motorsport and enthusiast communities ensures continual refinement and exceptional quality, fit and finish.
Choose the Milltek HJS Tuning ECE Downpipes SSXAU771 for your Audi RS3 8V or Audi TTRS 8S and experience a premium, road-legal performance exhaust upgrade that delivers sound, response and reliability.