01
Real experience
We test before we recommend.
PRODUCT DESCRIPTION
Downpipe AUDI A4 S4 / Avant Quattro / Avant 3.0 TDI + heat shield
3.0 TDI 2016-2021 286 HP Quattro
Pipe diameter: 76 mm
Available in the following versions: without muffler, with muffler or with catalytic converter.
Additionally, you can choose a version with or without a heat shield.
This product is not approved and cannot be used on public roads in the EU.
Downpipe AUDI A4 S4 / Avant Quattro / Avant 3.0 TDI + heat shield
Available options:
220109 - Straight downpipe.
220109S - Straight downpipe with muffler.
220109H - Straight downpipe with heat shield.
220109SH - Straight downpipe with muffler and heat shield. 220109C/E6 - Downpipe with catalytic converter 90603344 (200 cpsi), compliant with EURO 6 emissions standards.
220109CH/E6 - Downpipe with heat shield and catalytic converter 90603344 (200 cpsi), compliant with EURO 6 emissions standards.
220109C/OBD - Downpipe with catalytic converter 90603444 (200 cpsi), compliant with emissions standards for OBD systems.
220109CH/OBD - Downpipe with heat shield and catalytic converter 90603444 (200 cpsi), compliant with emissions standards for OBD systems. 220109C/MS - Downpipe with catalytic converter 90603242 (100 cpsi capacity), compliant with emissions standards for competition.
220109CH/MS - Downpipe with heat shield and catalytic converter 90603242 (100 cpsi capacity), compliant with emissions standards for competition.
The downpipe for Audi A4 S4 / Avant Quattro / Avant 3.0 TDI with heat shield includes the following connections:
One connector for the lambda sensor
Two tubes for the differential pressure sensor
Two connectors for the exhaust gas temperature sensor
One connector for the NOx sensor
Connector for the reducing agent injector
Includes 3 bolts with nuts and washers
Original Equipment (OE) Part Numbers:
8W0254750SX
8W0254751CX
8W0254751C
8W0254751BX
8W0254750Q
8W0254750S
8W0254750RX
8W0254751DX
8W0254751D
Custom-made downpipe Made of acid-resistant steel (T304, X5CrNi18-10, 1.4301, AISI 304, 0H18N9). Each component is machined with CNC technology. The product comes with a 24-month manufacturer's warranty. See also other downpipes in our catalog.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
02
We help you choose the right part.
03
Only trusted manufacturers.
04
Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.