Milltek Large-Bore Downpipe with Cat and OPF/GPF Bypass (De-Cat) - Audi RS3 (8V and 8Y), RSQ3 and TT RS (8S) 2.5 TFSI, OPF/GPF Models 2019 on
- SKU:
- SSXAU817
Need Some Advice? Speak to one of our experts.
Large-bore downpipe with the catalytic converter and OPF/GPF bypassed, for the 2.5 TFSI Audi RS3, RSQ3 and TT RS fitted with a particulate filter. It replaces the original downpipe and works with the original or a Milltek cat-back system.
Features
- 76.2 mm large-bore pipework
- Works with the original or a Milltek cat-back system
Specifications
- Part number: SSXAU817
- System type: Large-bore downpipe with cat and OPF/GPF bypass
- Pipe diameter: 76.2 mm
- ECE approved: No
- Race product: Yes
- For off-road and motorsport use only.
In the kit
- Downpipe Turbo Elbow (MSAU717)
- Cat and OPF/GPF Bypass Assembly (MSAU736REP)
Fitment
- Audi RS3 Saloon 400PS (8V), OPF/GPF models, 2019 on
- Audi RS3 Saloon 400PS (8Y), OPF/GPF models, 2021 on
- Audi RS3 Sportback 400PS (8V facelift), OPF/GPF models, 2019 on
- Audi RS3 Sportback 400PS (8Y), OPF/GPF models, 2021 on
- Audi RSQ3 2.5T Sportback and SUV, OPF/GPF models only, 2020 on
- Audi TT RS (Mk3) 2.5 TFSI quattro, OPF/GPF models, 2019 on
Important
- OPF/GPF equipped cars only
- Needs a Stage 2 remap
- Because of the turbo wastegate design, a de-cat downpipe can make a metallic rattle that is more noticeable than with the original catalytic downpipe
Before you order
Contact us with your registration or VIN and we will confirm fitment before you order.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.




