Milltek Large-bore Downpipe and De-cat with GPF/OPF Bypass - Audi TT RS 2.5 TFSI quattro (8S, OPF/GPF) 2019 on
Milltek
- SKU:
- SSXAU817-137_3
- Type:
- Exhaust
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Large-bore downpipe with a catalyst delete (de-cat) and GPF/OPF bypass for the Audi TT RS 2.5 TFSI quattro (8S, OPF/GPF models). It replaces the original downpipe, catalytic converter and particulate filter, and works with either the original or the Milltek cat-back.
Features
- Large-bore downpipe with turbo elbow
- Catalyst and OPF/GPF bypass assembly
- Suits both the original and the Milltek cat-back systems
Specifications
- Part number: SSXAU817
- System type: Large-bore downpipe with catalyst delete (de-cat) and GPF/OPF 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 & OPF/GPF Bypass Assembly (MSAU736REP)
Fitment
- Audi TT RS (TT Mk3, 8S) 2.5 TFSI quattro, OPF/GPF models, 2019 on
Important
- OPF/GPF models only.
- Because of the turbo wastegate design, a de-cat can cause a metallic rattle that is more noticeable than with the original catalyst 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.




