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Audi A3 8V: the complete exhaust system guide

11 min read

Audi A3 8V: the complete exhaust system guide

The A3 8V is everywhere on our roads, and this is your chance to make yours stand out. A valved exhaust system transforms its everyday character: a richer tone, an assertive presence, and factory discretion available at the press of a remote button. For your Audi A3 8V, this guide sets out what each choice changes: material, front section, sound, valves and fitting.

Written by ROG Motorsport · Updated

ROG valved exhaust system for Audi A3 8V

Your ROG exhaust for the Audi A3 8V

From €2,190 in stainless steel, €2,690 in titanium

Configure my exhaust
Vehicles
Audi A3 8V 2.0 TFSI (2014-2016)
Engine
EA888 · 190 to 220 hp · 320 to 350 Nm, depending on the version
Exhaust
Valved cat-back, built for your VIN
Material
304 stainless steel or titanium
Front section
Optional: catted downpipe with 200 or 100 cells, or decat
Valves
ROG remote, or factory control if your vehicle has it
Lead time
20 working days from order confirmation to delivery
Warranty
3 years, parts and workmanship

Closely related versions have their own guide: Audi S3 8V 2.0 TFSI, Audi RS3 8V 2.5 TFSI, Audi A3 8Y 2.0 TFSI, Audi S3 8Y 2.0 TFSI saloon.

The TFSI 4-cylinder: more character than you might think

The turbocharged four-cylinder in your A3 8V is a modern, robust engine, calibrated by Audi for efficiency and refinement, not for emotion. The result: an anonymous factory sound. What few drivers know is that a TFSI responds very well to a well-engineered exhaust: by removing the unnecessary silencers and optimising the routing, you get a full, sporty and rewarding tone, with crisp crackles on the overrun.

The ROG exhaust delivers exactly that, and the controllable valves do the rest: character when you want it, total discretion when you need it.

How the exhaust on your Audi A3 8V is put together

An exhaust system is best understood in two parts. Here is what each one does, and what ROG replaces.

How the exhaust system is laid out From left to right: the engine, the front section, then the ROG cat-back with its valved silencer and tips.Front sectionROG cat-back: the complete exhaustEA888
Valves closed: the gases pass through the silencer chambers and the car stays composed.Valves open: the gases take the direct route and the engine speaks freely.Schematic only; the actual routing depends on the vehicle.

The cat-back is the complete exhaust system

It is everything you can see under your Audi A3 8V, from the outlet of the front section to the tips: pipes, silencers, valves. This is where our research and development is focused, and it is what shapes the sound. On its own, it changes the character of the car.

The front section, where the catalytic converter sits

On your Audi A3 8V, it is the downpipe, the pipe leading from the turbo. It contains the factory catalytic converter: the second restriction in the exhaust, after the silencer. Replacing this part is optional: it frees up the flow, and an ECU remap is what turns that into power.

The figures for your Audi A3 8V

On a modern car, an exhaust system first changes the voice, the breathing and the weight at the rear. Power, on the other hand, comes from an ECU remap.

Power

Factory190 to 220 hp
Stage 2270 hp

Torque

Factory320 to 350 Nm
Stage 2430 Nm

Published factory and Stage 2 figures. Factory figures vary by version; Stage 2 figures published for the 220 hp version.

Our exhaust systems work perfectly with or without an ECU remap. On your Audi A3 8V, however, we recommend having one done at an approved tuning centre: that is what lets the engine reach its full potential.

To be completely transparent: on a turbocharged 4-cylinder, the exhaust alone mainly improves breathing and sound. The significant power gains come with Stage 2, the exhaust plus an ECU remap at an approved tuning centre, and the TFSI handles them with ease. It is the combination we recommend to anyone who also wants to transform performance.

Configuring your exhaust, step by step

4 choices, in the same order as the product page configurator.

  1. Step 1 of 4: Material: stainless steel or titanium

    For your Audi A3 8V, the exhaust costs €2,190 in stainless steel and €2,690 in titanium.

    304 stainless steel

    €2,190

    Weight
    Baseline
    Sound
    Full and rounded

    The benchmark for high-end exhausts: tough, corrosion-proof, with a full, rounded sound. The choice of most of our customers.

    Titanium

    €2,690

    Weight
    Around 40% lighter
    Sound
    Metallic, crystal-clear

    Around 40% lighter than stainless steel for the same design, with a more metallic sound that turns crystal-clear at high revs. Its finish ranges from brushed to blued tints.

    Over time, both hold up: 304 stainless steel stands up to winter salt and damp, and titanium does not rust. Stainless steel or titanium: what really changes.

  2. Step 2 of 4: Front section: downpipe and catalytic converter

    Optional: the downpipe on your Audi A3 8V, with its catalytic converter. Sound intensity is rated on our scale of 0 to 10, valves open; the factory exhaust scores 3.

    Cat-back only

    Included

    7/10

    Factory emissions control

    The factory catalytic converter stays in place. The starting point and, for many of our customers, more than enough.

    200-cell sports catalytic converter

    +€670

    8/10

    Road use and inspection

    Emissions control is still very much there, and flow improves noticeably. The choice for everyday driving.

    100-cell sports catalytic converter

    +€670

    9/10

    Inspection: depends on local rules

    Half as many cells: flow comes close to a decat and the sound gains real aggression at high revs.

    Decat

    +€420

    10/10

    Track use

    No emissions control: maximum flow, raw sound, the sharpest revving.

    Sound intensity, on a scale of 0 to 10

    1. 10/10Decat downpipe + ROG cat-back
    2. 9/10100-cell sports catalytic converter + ROG cat-back
    3. 8/10200-cell sports catalytic converter + ROG cat-back
    4. 7/10ROG cat-back only, factory catalytic converter retained
    5. 3/10Factory exhaust, for comparison

    Valves open. With the valves closed, every configuration becomes discreet again.

    What about the engine warning light? A sports catalytic converter can trigger it: the oxygen sensor after the catalytic converter detects less cleaning than with the factory unit. It is not a fault. An ECU remap recalibrates the sensor, and a session with a diagnostic tool clears the fault code. With a decat, the warning light is almost certain without a remap. If it happens to you, call us and we will point you in the right direction. Passing vehicle inspection with a sports exhaust.

  3. Step 3 of 4: Valves: ROG remote or factory control

    Two ways to control the valves on your Audi A3 8V.

    ROG remote

    ROG remote for opening and closing the valves

    A small control unit fits in the boot. Two buttons, open and closed: the valves respond at any moment, whatever the drive mode. Simple to fit, and we stay on hand throughout the installation.

    Factory control

    • Only for vehicles fitted with factory valves
    • Controlled by the drive modes

    If your vehicle is fitted with factory valves, the exhaust keeps their existing control. The drive modes decide, just as they did from the factory, with no added electronics.

    On the motorway, with the valves closed, the gases pass through the silencer, designed for cruising: no drone at a steady speed. You open up when you feel like it, not when the motorway decides for you. More about exhaust drone.

  4. Step 4 of 4: Tips: the visual signature

    Match the tips to the style of your Audi A3 8V, understated or bold. A particular finish in mind? Send us a photo and we will look at it together.

    • Stainless steel
    • Black
    • Carbon
    • Blued titanium
    Exhaust tips for Audi A3 8V

The ROG sound signature on the 4-cylinder

Our optimised routing gives the TFSI a full, sporty tone, far richer than the thin factory sound, with crisp crackles on the overrun with the valves open. The goal is not volume at any cost but a rewarding, controlled sound that becomes completely discreet again with the valves closed.

Valves open and valves closed: the gas path through the ROG silencer
Valves open, valves closed: the path the gases take through the silencer.

From order to fitting

  1. Configuration

    You choose your exhaust and enter your VIN, found in box E of your registration document or at the base of the windscreen.

  2. Check

    We check compatibility with your VIN before manufacturing begins.

  3. Manufacturing

    Your exhaust is made to order, for your car.

  4. Delivery

    Free, insured to your door, tracked from dispatch.

  5. Fitting

    No welding or cutting: clamps and gaskets, around two hours on a lift.

20 working days from order confirmation to delivery

Warranty
3 years, parts and workmanship, from the date of delivery
Payment
In instalments with Klarna
Installation
At the garage of your choice

What about the manufacturer's warranty on your Audi A3 8V? In Europe, a manufacturer cannot refuse warranty cover simply because a part from another brand has been fitted: it has to prove that the fault was caused by that part. Our article on the manufacturer's warranty.

Our recommendations for your Audi A3 8V

  • Daily driving

    €2,190

    • Stainless
    • Cat-back only
    • ROG remote

    Your Audi A3 8V stays easy to live with, the factory emissions control is retained, and you open the valves whenever you decide.

    View this configuration
  • Fast road

    €3,360

    • Titanium
    • 200-cell downpipe
    • ECU remap

    More sound, more breathing, and a car you can still present at vehicle inspection.

    View this configuration
  • Track

    €3,110

    • Titanium
    • Decat downpipe
    • Stage 2

    The most extreme configuration, for track use only.

    View this configuration

And if you are still unsure, that is perfectly normal: it is exactly why we answer the phone.

Audi A3 8V: your questions

How much power does an exhaust system add to the Audi A3 8V?

As standard, the Audi A3 8V produces from 190 to 220 hp and 320 to 350 Nm, depending on the version. An exhaust system on its own mainly changes the sound, the breathing and the weight; power is gained with an ECU remap. With a Stage 2 build, the published figures for the 220 hp version reach 270 hp and 430 Nm.

Stainless steel or titanium: which material for the Audi A3 8V?

For the Audi A3 8V, the ROG exhaust costs €2,190 in stainless steel and €2,690 in titanium. 304 stainless steel is tough, rounded in tone and the most popular choice; titanium is around 40% lighter for the same design, with a more metallic sound at high revs.

Do you need to replace the catalytic converter on the Audi A3 8V?

No. On the Audi A3 8V, the cat-back alone carries the valves and already transforms the sound. Replacing the downpipe is an option for going further: with a 200-cell sports catalytic converter for the road, 100-cell or decat for more radical use, with an ECU remap to turn it into power.

Will a ROG exhaust pass vehicle inspection on the Audi A3 8V?

With the cat-back only or the 200-cell sports catalytic converter, emissions control is retained: present the car with the valves closed. The 100-cell brings more sound and flow, and whether it is accepted at the emissions test depends on the car and local rules; the decat version is intended for track use.

How is the ROG exhaust fitted to the Audi A3 8V?

No welding or cutting, using clamps and gaskets. Allow two hours on average for a well-equipped mechanic. The exhaust is built for your VIN, which guarantees compatibility before it ships.

What does a ROG exhaust cost for the Audi A3 8V, and how long does it take?

From €2,190 to €3,360 depending on the configuration. Allow 20 working days from order confirmation to delivery. Free delivery and a 3-year warranty.

Unsure about your configuration? Give us a call.

Stainless steel or titanium, cat-back only or the complete system: the right choice depends on how you drive and on your Audi A3 8V. We take the time to talk it through before you order, with a reply within 24 hours. We are not here to sell to you over the phone: we help you choose, even if that means a cheaper option because it suits the way you drive.

RogMotorsport is a French brand built on one conviction: with an exhaust system, the support matters as much as the product. More than 500 exhaust systems fitted and a rating of 4.9 out of 5.

Further reading