Valved Exhaust System for Audi TTS / TTS Roadster 8S 2.0 TFSI (2015-2019)
Configuration
Audi TTS / TTS Roadster 8S 2.0 TFSI Valved Exhaust System (2015-2019)
Valves
Operated by remote control, factory-paired.
Estimated at 0.50 m from the outlet, 45°, 2,000 rpm with a warm engine. Allow ± 2 dB depending on the engine and measuring point. A 3 dB difference is audible in a direct comparison; 10 dB sounds roughly twice as loud.
Configuration guide
Sound intensity with the valves open, on a scale of 0 to 10.
| Configuration | Intensity |
|---|---|
| Decat downpipe + Rog cat-back | 10/10 |
| 100-cell sports catalytic converter + Rog cat-back | 9/10 |
| 200-cell sports catalytic converter + Rog cat-back | 8/10 |
| Rog cat-back only, factory catalytic converter retained | 7/10 |
| Factory exhaust, for comparison | 3/10 |
The Audi TTS / TTS Roadster 8S exhaust in detail.
The TTS 8S pushes the 2.0 TFSI four-cylinder to 310 hp and 380 Nm, and its factory exhaust is designed so that none of this thrust can be heard from outside. This page covers the 2015 to 2019 TTS 8S, before the facelift; the more recent versions, stated at a different output, are not listed. For the base TT 8S as for the five-cylinder TT RS, see the dedicated pages.
With the valves open, our valved cat-back gives the TFSI a full, sporty tone and clear crackles on the overrun, without chasing volume for its own sake. With the valves closed, the gases pass through the silencer and the TTS regains a discretion close to delivery condition, welcome on the motorway.
On this turbo engine, the “Manifold” option replaces the downpipe, which contains the catalytic converter at the turbo outlet. For a TTS that keeps its plates and is used often, the 200-cell downpipe remains the right choice since it keeps emissions control; the 100-cell one is accepted or not depending on the car and the rules in your country, and the decat version is reserved for track use, for track days. Without an ECU remap, the TTS keeps its 310 hp and gains sound and a little lightness.
Installation requires no welding: band clamps, gaskets, about two hours, and round tips at the rear. The original valves stay controlled by the drive modes; without them, the Rog remote takes care of it. If you are unsure about the material, 304 stainless steel remains the benchmark, with titanium lightening the system by around 40% in a brushed, gold or purple finish.
Audi TTS / TTS Roadster 8S 2.0 TFSI exhaust specifications.
| System type | Valved cat-back (valve exhaust), round tips |
|---|---|
| Vehicles and chassis code | Audi TTS 8S 2.0 TFSI coupé and Roadster |
| Engine | 2.0 TFSI, turbocharged four-cylinder, 310 hp and 380 Nm |
| Years | 2015-2019 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory drive modes or the Rog remote |
| Front section (option) | Downpipe with 200-cell or 100-cell catalytic converter, or decat |
| Fitting | Clamps and gaskets, no welding, about 2 hours |
| Manufacturing and delivery | Built to your VIN, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Audi TTS / TTS Roadster 8S 2.0 TFSI exhaust.
Can a facelifted TTS 8S, built after 2019, take this exhaust?
The page stops in 2019, and the 2020 to 2023 model years are excluded for the cat-back. For a newer TTS, the VIN lets us look into what exists before you order.
What figures does a remapped 310 hp TTS 8S reach?
The cat-back alone does not require an ECU remap. With the downpipe and a suitable map at an approved tuning centre, the page lists 378 hp and 483 Nm.
What should you know about the vehicle inspection of a modified TTS 8S?
With the valves closed, the TTS returns to a sound close to factory. As long as the TTS runs with the cat-back alone or a 200-cell downpipe, nothing changes for its emissions. The 100-cell will be judged according to the vehicle and your country’s rules; the decat downpipe confines the car to the track.
Stainless steel or titanium for a TTS 8S?
304 stainless steel gives a full, round sound and is the most common choice. Titanium, for its part, removes around 40% of the weight, gives a clearer note at high revs and comes in three colours.
Coupé or Roadster: does the TTS 8S 2.0 TFSI take the same system?
Yes. The coupé and the Roadster take the same Rog system: same chassis, same engine, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Audi TTS / TTS Roadster 8S 2.0 TFSI: Does a valved exhaust system drone?
No. With the valves closed, the gases flow through the whole rear silencer and the cabin stays calm at a steady speed. Our Rog exhausts are designed to avoid drone. Learn more: Why our systems stay calm on the motorway.
Audi TTS / TTS Roadster 8S 2.0 TFSI: straight pipe or resonator?
On this model, two characters at the same price: the straight pipe for the raw sound of your engine, unfiltered, or the resonator for a rounder and slightly softer voice. Either way, the exhaust stays fully sporty. Learn more: Exhaust resonator: what does it do? Straight pipe or resonator, which sound to choose.
Rog expert guide
Audi TTS / TTS Roadster 8S: the complete exhaust system guide
The TTS 8S is agility distilled: 310 hp in a compact, lightweight coupé. It lacks only one thing, a voice: the 2.0 TFSI is smothered by a flat, characterless factory exhaust. Our exhaust gives it the sound character its chassis...
In detail
Rog Advisor
A question about this exhaust?
Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
The Rog Advisor is an automated assistant trained on our product pages and answers. For an important decision, write to us: we confirm by e-mail.
Unsure about your configuration? Talk to us before you order. We know your car. Write to us at contact@rogmotorsport.com: we reply in writing, in English, within 24 hours. Email us
Reviews imported from our previous system and translated from French; verified purchases carry the badge.
Rog presentation film: choosing your vehicle, Standard or Equal Length design, stainless steel or titanium, Z-Pipe, controlled valves, titanium and tip finishes, and support from choosing your configuration through to shipping.
THE Rog CRAFT
Our process.
From the first bend to the last check. The same care at every step.
-
Design
Designed for your vehicle.
Geometry matched to your model, carefully studied bends and precise mounting points. Everything starts with accurate design.
-
Manufacture
Crafted with precision.
Tube bending, part fitting and TIG welding: every joint receives the same care.
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Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
-
Assembly
Every part in its place.
Components are assembled and adjusted. On valved systems, the mechanism is fitted, set up and tested.
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Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
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Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
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