Valved Exhaust System for Bentley Flying Spur V8 4.0 ZG2 (2021-2024)
Configuration
Bentley Flying Spur V8 4.0 ZG2 Valved Exhaust System (2021-2024)
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 Bentley Flying Spur V8 ZG2 exhaust in detail.
The ZG2-generation Flying Spur receives a 4.0-litre V8 with its two turbos nestled in the vee, to shorten the gas path and make the response more direct. It delivers 550 hp and 770 Nm, considerable torque that arrives very early: overtaking happens with the pedal barely pressed. The saloons concerned were built from 2021 to 2024, and the older Continental Flying Spur W12 has a separate page.
This V8 naturally has a deep voice, with the characteristic eight-cylinder burble at idle, which the factory exhaust reduces to a murmur you sense more than hear. With the valves open, our valved cat-back releases a more assertive start-up and audible acceleration, with a broad sound that stays noble rather than aggressive. With the valves closed, the limousine becomes silent again, right up to a discreet arrival outside a hotel.
Further upstream, the page’s “Manifold” option corresponds to the V8’s downpipes: according to parts manufacturers, they are the same as on the Continental GT V8 of the same platform. On board a limousine of this standing, 200-cell downpipes are expected to keep emissions control, which they do; in 100-cell form, they are accepted or not depending on the vehicle and your country’s rules, and their decat version is reserved for track use. Without an ECU remap, it adds only sound and a little lightness.
The cat-back fits without an ECU remap or any work on the engine, with clamps and gaskets, in about two hours, and ends in round tips. The valves keep their factory control; without them, the Rog remote. 304 stainless steel and titanium, the latter around 40% lighter and finished in brushed, gold or purple, are both offered.
Bentley Flying Spur V8 4.0 ZG2 exhaust specifications.
| System type | Valved cat-back (valve exhaust), round tips, built to your VIN |
|---|---|
| Vehicle and code | Bentley Flying Spur V8 4.0, ZG2 generation |
| Engine | 4.0-litre twin-turbo V8, turbos in the vee, 550 hp and 770 Nm |
| Years | 2021-2024 |
| 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 |
| 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 Flying Spur V8 4.0 ZG2 exhaust.
Can the W12 or hybrid Flying Spur of this generation take the system?
Our page names the ZG2-generation Flying Spur V8 4.0, not the other engines. For any other engine, the VIN lets us look for a solution before you order.
Does the Flying Spur V8’s engine management need to be modified?
No, the V8 keeps its 550 hp and original engine management with the cat-back. The downpipes only translate into power with an ECU remap, for which no figure is published here for this saloon.
Bentley Flying Spur V8 4.0 ZG2 with a Rog exhaust: what should you know about vehicle inspection?
Close the valves, and the saloon becomes the silent lounge it was on delivery. The catalytic converters remain fully active with the cat-back alone as with 200-cell downpipes. With the 100-cell, the outcome depends on the car and the rules in your country; in decat form, the Bentley belongs on the track only.
On a long journey, does the equipped Flying Spur V8 stay relaxing?
Yes, as long as the valves are closed: the silencer works as from the factory and the V8 fades into the background. You only open the valves when the road and your mood are right.
Bentley Flying Spur V8 4.0 ZG2: 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 Flying Spur V8 ZG2: a limousine that knows how to growl, the exhaust guide
The Flying Spur is Bentley's large saloon, built to eat up the miles in drawing-room silence. In V8 form, it relies on a 4.0-litre twin-turbo with no shortage of torque or character, but which the factory exhaust deliberately keeps muted....
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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