Valved Exhaust System for Audi TT RS / TT RS Roadster 8S 2.5 TFSI (2016-2022)
Configuration
Audi TT RS / TT RS Roadster 8S 2.5 TFSI Valved Exhaust System (2016-2022)
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 TT RS / TT RS Roadster 8S exhaust in detail.
The only TT of the 8S generation to receive a five-cylinder, the TT RS built from 2016 to 2022 carries the 400 hp, 480 Nm 2.5 TFSI turbo, often awarded best engine in its class. The four-cylinder TT 8S and TTS 8S each have their own exhaust.
This engine has a voice nothing else produces: its 1-2-4-5-3 firing order, inherited from Audi’s quattro rally cars, gives a syncopated rumble, part hoarse, part howling. In the standard TT RS, filters and silencers smother precisely what makes it unique. With the valves open, our valved cat-back unleashes the gust under acceleration and rich crackles on the overrun; with the valves closed, the little coupé becomes perfectly civilised again.
The cat-back is fitted without welding, using clamps and gaskets, and occupies a workshop for about two hours; the tips are round. If factory valves are present, the system retains their control and the driving modes stay in charge; otherwise, the Rog remote and its boot-mounted unit operate them.
On this five-cylinder, the “Manifold” option refers to the downpipe, which carries the catalytic converter at the turbo outlet. A TT RS that also does the weekday commute is better off with the 200-cell, emissions control kept; with 100 cells, it is accepted or not depending on the car and the rules in your country, and its decat version is reserved for track use. Without a suitable map, 400 hp stays 400 hp: the part brings sound and a little less weight. 304 stainless steel for a full bass, or titanium around 40% lighter, more metallic at high revs, in brushed, gold or purple.
Audi TT RS / TT RS Roadster 8S 2.5 TFSI exhaust specifications.
| System type | Valved cat-back (valve exhaust), round tips, built to your VIN |
|---|---|
| Vehicles and chassis code | Audi TT RS 8S 2.5 TFSI coupé and Roadster |
| Engine | 2.5 TFSI, turbocharged inline-five, 400 hp and 480 Nm |
| Years | 2016-2022 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory control through the 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 | Made to order, 20 working days from confirmation to delivery, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Audi TT RS / TT RS Roadster 8S 2.5 TFSI exhaust.
Coupé or Roadster, which TT RS 8S can order this system?
Both. The TT RS coupé and the TT RS Roadster 8S take the same Rog system: same chassis, same 2.5 TFSI five-cylinder, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Does the TT RS 8S’s five-cylinder benefit from an ECU remap?
Not needed for the cat-back, which is happy with the factory map. Downpipe and an ECU remap by an approved tuner, on the other hand, open the way to the 494 hp and 630 Nm published on the page.
How does a valved TT RS 8S present at vehicle inspection?
With the valves closed, the five-cylinder becomes as discreet as on delivery. With the cat-back alone or combined with the 200-cell downpipe, the five-cylinder keeps all its emissions control. The 100-cell remains subject to the vehicle and your country’s rules, and the decat version turns the TT RS into a track car.
Does a modified TT RS drone on the motorway?
With the valves closed, the silencer works like a cruising exhaust and the coupé stays composed at a steady speed. The five-cylinder’s gust comes back when you open the valves, not before.
Audi TT RS / TT RS Roadster 8S 2.5 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 TT RS / TT RS Roadster 8S: unleashing the five-cylinder, the complete exhaust system guide
The TT RS 8S means 400 hp from a five-cylinder in a compact, lightweight coupé: R8 performance for a fraction of the price. The OPF versions lost much of the voice that made the model so charming. Setting it free...
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.
-
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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