Milltek Sport Large Bore Downpipe with Hi-Flow Sports Catalyst (Audi RS3 8V+8Y/RSQ3/TTRS MK3) (SSXAU818)

Milltek Sport Large-Bore Downpipes are perfect when looking to improve both performance and sound. These downpipes are fabricated with a larger diameter than standard OEM parts, meaning that there is significantly more space for more gas to exit the engine and pass through, increasing efficiency. Combined with our Hi-Flow Sports Cat, you can expect a significant increase in performance and a noticeable difference in sound aesthetic. Stage 2 ECU Remap Required.

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.

Vehicle fitment (Milltek Sport)

• Audi RS3 Saloon / Sedan 400PS (8V MQB) - OPF/GPF Models (2019-)
• Audi RS3 Saloon/Sedan 400PS (8Y MQB EVO) - OPF/GPF Models (2021-)
• Audi RS3 Sportback 400PS (8V MQB - Facelift Only) - OPF/GPF Models (2019-)
• Audi RS3 Sportback 400PS (8Y MQB EVO) - OPF/GPF Models (2021-)
• Audi RSQ3 2.5T Sportback & SUV (OPF/GPF Equipped Models Only) (2020-)
• Audi TT Mk3 TTRS 2.5TFSI Quattro (OPF/GPF Models) (2019-)

TÜV / ABE available upon request

We currently ship within Europe only.

If a part is not available, we will contact you with an estimated wait time.

If you wish to return a product after receiving it, we offer a 14-day returns policy. Custom-made products are not eligible for return, and return shipping is at the customer's expense. Full delivery and returns terms are on the “Delivery Information” page — the link is at the bottom of the page.

Products come with a warranty, detailed in a certificate included in the box.

To make a valid claim, you must prove the damage was not caused by you and that the warranty certificate is valid.

Full terms are on the “Terms & Conditions” page — the link is at the bottom of the page.