CTS Turbo 8V/8Y RS3 and 8S TTRS 2.5T EVO RACE Downpipe

CTS Turbo is proud to announce our proprietary high-flow downpipe for 2018+ Audi 8V/8Y RS3/8S TTRS with 2.5L TFSI EVO (EA855) engine. This stainless steel high-flow downpipe that allows the user to remove the restrictive factory "main catalytic converters". This downpipe is a part of our modular exhaust system and it is compatible with factory or CTS Turbo mid-pipes. We used CAD simulation to streamline the flow of exhaust gasses and ensure that it splits evenly into two outlets. Many hours of R&D were spent to ensure perfect fit, smooth exhaust flow and excellent sound. Unfortunately, the Check Engine Light will come on after the installation; we strongly recommend using "stage 2" software because the CEL deletes or emulators are not compatible with these cars. Features: - Large 4.0" downpipe outlet splitting into dual 2.5" pipes - Durable 304 food-grade stainless steel - Laser cut flanges and precision machined v-band - Factory-like placement of O2 sensors - Designed using the latest 3D scanning technology - Exhaust flow simulated with CAD software to ensure optimal flow routing - Perfect fit with factory or aftermarket mid-pipes - Aggressive sound - really makes that 2.5T scream - No drone under normal driving conditions - Optional driveshaft removal tool available separately Fitment: - 2018+ Audi 8V/8Y RS3 2.5T EVO (EA855) - 2018+ Audi TTRS 2.5T EVO (EA855) Stage 2 software is required to avoid check engine light.

This part also goes by the following cross reference.

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Fits These Vehicles 5 applications

RS3

Make	Model	Engine	Years
AUDI	RS3		2015–2023
AUDI	RS3 (8V)		2015–2021
AUDI	RS3 (8Y)		2022–2023

TTRS

Make	Model	Engine	Years
AUDI	TTRS		2016–2021
AUDI	TTRS (8S)		2016–2021

Fitment data last updated: 2026-07-02