Valved Exhaust System for Bentley Continental GT / GTC V8 4.0 (2014-2017)
Configuration
Bentley Continental GT / GTC V8 4.0 Valved Exhaust System (2014-2017)
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 |
BentleyContinental GT / GTC (2011-2017)
The Bentley Continental GT / GTC V8 exhaust in detail.
Lighter at the nose than the W12, sharper and naturally more talkative, the 4.0-litre twin-turbo V8 is the driver’s choice in the Continental GT range. It is rated at 500 hp and 660 Nm for the 2014 to 2017 model years covered by this page. Bentley already gave it a more expressive voice than the twelve-cylinder, but always within the bounds of Crewe refinement; Continental GT W12 models of other generations have their own pages.
All of this engine’s reserve of character therefore remains to be freed. With the valves open, our valved cat-back lets you hear a thoroughbred V8 rumble, a commanding climb and refined bangs when you lift off; close them, and the Continental becomes the rolling lounge it must also know how to be again, in town as on a long stage.
The rear gets paired round tailpipes. No welding is needed: clamps and gaskets connect the system in about two hours, and the original valve control is retained if the car has it; otherwise, the Rog remote, with its small box hidden in the boot, does the job.
The page also offers the “Manifold” option, which on this twin-turbo corresponds to the downpipes, carrying the catalytic converters at the turbo outlets, and which is only documented in our records for the GT coupé. A grand tourer from Crewe spends most of its life on the road: the 200-cell downpipes, which keep emissions control, are right at home there, whereas with 100 cells they are accepted or not depending on the car and the rules in your country, and in decat form they are reserved for track use. As the ECU is not touched, the V8 keeps its factory 500 hp and only gains voice. 304 stainless steel serves the V8’s bass, titanium lightens it by around 40% and comes in brushed, gold or purple.
Bentley Continental GT / GTC V8 4.0 exhaust specifications.
| System type | Valved cat-back (valve exhaust), paired round tailpipes, built to your VIN |
|---|---|
| Vehicles | Bentley Continental GT and GTC V8 4.0 |
| Engine | 4.0-litre twin-turbo V8, 500 hp and 660 Nm |
| Years | 2014-2017 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control if fitted, otherwise the Rog remote |
| Front section (option) | Downpipes with 200-cell or 100-cell catalytic converters, or decat (GT coupé) |
| Fitting | Clamps and gaskets, no welding, about 2 hours |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Bentley Continental GT / GTC V8 4.0 exhaust.
Continental GTC V8: does the convertible also benefit from this system?
Yes for the system: the 2014 to 2017 GT and GTC V8 are covered, the system being built to your VIN for each body style. The downpipes are only documented for the coupé: for a GTC, send us the VIN before ordering this option and we check.
Should the Continental GT V8 go on the dyno for an ECU remap?
Not for the cat-back, which leaves the V8 at 500 hp with its factory management. It becomes worthwhile with the downpipes; we do not publish a Stage 2 figure here, as the figures recorded for this engine do not agree between our sources.
Before handing a Continental GT V8 over for vehicle inspection, what should I check?
Present it with the valves shut, and the V8 immediately regains the reserve its engineers intended. With the cat-back alone or the 200-cell downpipes, the catalytic converters carry on working. For 100-cell downpipes, the answer depends on the vehicle and your country’s rules; without a catalytic converter, this Bentley should no longer leave a circuit.
V8 or W12: which Continental sounds best with the exhaust?
The V8 is more vocal by nature, with a thoroughbred rumble and bangs on the overrun; the W12 has a denser, smoother voice. Each has its own page: choose the one that matches your registration document.
Bentley Continental GT / GTC V8 4.0: 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.
Rog expert guide
Bentley Continental GT / GTC V8 2012-2018: unleashing the V8, the complete exhaust system guide
The first-generation Continental GT V8 is one of the best deals in grand touring: Crewe refinement, a robust twin-turbo V8 and an attractive used price. Its V8 has a thoroughbred character that the factory exhaust keeps to itself. Here you...
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
Your country
Rog in the UK.
The MOT and your exhaust
At the MOT, exhaust noise is judged by ear, with no sound meter: valves closed, your car sounds very close to stock. A cat-back leaves your factory cat and sensors untouched, a 200-cell sports cat keeps emissions control, and the MOT tester decides.
On the road
Valves closed around town, your car sounds very close to stock, and you open them whenever you like. Where councils use noise cameras, they target behaviour such as revving and racing.
Your documents
Each system is built from the VIN on your V5C, and an exhaust isn't one of the changes you record on it. We send the technical documentation free on request, for the MOT or for your insurer.
Your insurance
Insurers usually want to know about modifications, so let yours know: our free technical documentation makes it easy.
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.
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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.
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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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