Milltek Sport Catalyst Replacement Pipes (Audi B9 RS4/RS5) (SSXAU816)

The part is used to bypass the catalyst from the exhaust to create a ‘Decat’ system. Eliminating the catalyst will greatly enhance the gas-flow and the performance, adding significant Hp to your vehicle by removing the density of the catalyst in which exhaust gases are pushed through. - This product is intended for motorsport use only and requires Stage 2 ECU remap.

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 RS4 B9 2.9 V6 Turbo Avant (Non OPF/GPF Models) (2018-)
• Audi RS5 B9 2.9 V6 Turbo Coupe (Non OPF/GPF Models) (2017-2019)
• Audi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF/GPF Models) (2018-2019)
• Audi RS5 B9.5 2.9 V6 Turbo Coupe (Non OPF Models) (2019-)
• Audi RS5 B9.5 2.9 V6 Turbo Sportback (Non OPF Models) (2019-)

Fitting time: 3-4 h (including removal of the original system).

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.