Downpipe for Audi A4, A6 1.8T B6, and Passat 1.8T 3BG/5B, 63mm (2.5") diameter, made of stainless steel

What’s Included:
- Stainless steel downpipe for Audi A4 B6, A6 1.8T, and Passat 1.8T

---

Description:
- The downpipe is located between the catalytic converter and the exhaust system. It is bolted to the original catalytic converter, or our plug-and-play 200-CPI catalytic converter (item no. 340106) can be used. It has a cross-section of 63 mm (original: 54 mm); an Interlook flexible pipe and brackets are included. The larger downpipe reduces back pressure, relieves the turbo, and allows for increased power output—up to 330 PS, depending on the components installed. The pipe is bent and welded only at the flexible section and the flange. To connect to the original exhaust system, you’ll need to use a 63>54 mm reducer sleeve, but in most cases,larger exhaust systems are used during tuning.

---

Compatible with:
- Audi A4 1.8T B6 150PS, 163PS, 190PS
- Audi A6 1.8T C5

---

and also for the following upgrade turbochargers:
- Borgwarner K04-015 53049880015
- Borgwarner K04-015 / K06
- Borgwarner K04-015 / TFSI Supercharger Impeller

---

 

---

Registration:
For individual approval under §21 StVZO, please consult your TÜV inspector.

---

Please note that installing this item constitutes a modification that will void the vehicle’s operating permit under the StVZO. Use on public roads is not permitted.