2017-2020 Audi RS3 downpipes
11 downpipes for the 8V 2017-2020 Audi RS3 (2.5T inline-five) from 8 brands. The downpipe joins the turbocharger outlet to the rest of the exhaust. Aftermarket versions are sold with a high-flow catalytic converter or without one.
Before you order
- Removing or replacing a catalytic converter with a part that is not certified for the vehicle is illegal for road use under the federal Clean Air Act. Catless parts are sold for off-road use only.
- In California and other CARB states a replacement converter needs an Executive Order number for the specific vehicle.
- Check the retailer listing for whether engine software changes are required.
- Listings are read from the retailer's 8V RS 3 (2.5T, quattro) category. Confirm engine, drivetrain and model year on the retailer page before ordering.
Brands on this page: Integrated Engineering (2), Milltek Sport (2), Unitronic (2), 034Motorsport (1), CTS (1), Doorbusters (1), Scorpion (1), Supersprint (1).
Downpipe (10)

034Motorsport · Part no. 034-105-4044
Cast Stainless Steel Performance Downpipe
Offers increased horsepower and torque throughout the powerband *(+ 178 HP / + 179 TQ), reduced turbocharger lag, and an enhanced exhaust note - This is the ultimate downpipe solution for the discerning Audi enthusiast!
Retailer fitment note: *Requires a Stage 2 ECU Remap to eliminate check engine light and to take full advantage of power gains*

CTS · Part no. CTS-EXH-DP-0045-
3.5″ Single High-Flow CAT
A perfect fit, smooth exhaust flow, and excellent sound
Retailer fitment note: Stage 2 software is required to avoid check engine light.

Integrated Engineering · Part no. IEEXCQO1
Audi RS3 & TTRS 2.5 TFSI EVO 3.5" Downpipe
Deliver up to 577HP with a matching IE Stage 2 Tune and turn your 2.5T into an all-out power monster!
Retailer fitment note: *Does not include Y-pipe adapter (IEEXCQ3) - Necessary if mating to stock cat-back system*

Integrated Engineering · Part no. IEEXCQ3
IE Y-Pipe Adapter Kit
Used to adapt IE downpipe (RS3/TTRS) to stock Cat-back system, or IE Cat-Back (RS3) to stock downpipe

Milltek Sport · Part no. SSXAU726
3.0" Large Bore Downpipe
Featuring Milltek Sport High-Flow sports cat, fits with OE and Milltek cat-back systems.
Milltek Sport · Part no. SSXAU771
HJS Tuning 2.5" ECE Downpipes
Featuring HJS Tuning 200cpsi ECE-approved sports cat - Fits with OE and Milltek cat-back systems.

Scorpion · Part no. SAUX079
Scorpion Downpipe With High Flow Sports Cat
4.00" 304 stainless performance downpipe system with a high flow sports catalyst

Supersprint · Part no. 776132KT
Supersprint Downpipe/High-Flow Cat Kit
Includes Supersprint stainless downpipe pre-cat pipe and Supersprint High-Flow Metallic catalytic converters

Unitronic · Part no. UH051-EXA
Downpipe w/o Midpipes for 2.5TFSI EVO
Helps reduce turbo lag and enhance the exhaust note.

Unitronic · Part no. UH033-EXA
Unitronic Downpipe w/ Midpipes for 2.5TFSI EVO
Featuring 400 cell high flow catalytic converter
Catalytic Converter (1)

Doorbusters · Part no. SSXAU818
1 - LEAVE SD - Downpipe With High Flow Catalytic Converter
Featuring a Milltek Sport Hi-Flow Sport Cat with 3.00" Large Bore Pipe
More 2017-2020 Audi RS3 parts
- 2017-2020 Audi RS3 exhaust systems
- 2017-2020 Audi RS3 exhaust tips
- 2017-2020 Audi RS3 intakes
- 2017-2020 Audi RS3 charge pipes
- 2017-2020 Audi RS3 tunes & engine software
- 2017-2020 Audi RS3 intercoolers & charge cooling
- 2017-2020 Audi RS3 turbochargers & turbo parts
- 2017-2020 Audi RS3 fuel & ignition
- 2017-2020 Audi RS3 cooling upgrades
- 2017-2020 Audi RS3 engine & mounts
- 2017-2020 Audi RS3 drivetrain
- 2017-2020 Audi RS3 coilovers
- 2017-2020 Audi RS3 lowering springs
- 2017-2020 Audi RS3 suspension & chassis
- 2017-2020 Audi RS3 brake upgrades
- 2017-2020 Audi RS3 wheels
- 2017-2020 Audi RS3 wheel spacers & hardware
- 2017-2020 Audi RS3 front lips & splitters
- 2017-2020 Audi RS3 spoilers & wings
- 2017-2020 Audi RS3 rear diffusers
- 2017-2020 Audi RS3 exterior & aero
- 2017-2020 Audi RS3 interior