Valved Exhaust System for Maserati GranTurismo / GranCabrio V6 (2023+)
Configuration
Maserati GranTurismo / GranCabrio V6 Valved Exhaust System (2023+)
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 Maserati GranTurismo / GranCabrio V6 exhaust in detail.
The new-generation GranTurismo, launched in 2023, replaces its predecessor’s naturally aspirated V8s with a 490 hp, 600 Nm turbo V6. The Maserati engine keeps a recognisable Italian sound, warm and brassy, but the factory exhaust, calibrated for emissions standards, holds back a significant part of it.
With the valves open, the Rog valved cat-back releases this Italian tone: expressive at high revs, punctuated by sharp crackles on the overrun. With the valves closed, the GranTurismo regains the discretion of a prestige grand tourer. Its V8 4.2 and 4.7 predecessors are covered by other pages, and the new GranTurismo is identified from its VIN before manufacturing.
Installation, with no welding, uses clamps and gaskets and takes about two hours; the original valve control is retained if the car has it, otherwise the Rog remote decides.
To go further, the “Manifold” option replaces the V6’s downpipe, which carries the catalytic converter; without an ECU remap, it affects voice and weight, and with a map it becomes a power lever depending on the tuning. On a grand tourer designed for long journeys, the 200-cell version keeps emissions control, the 100-cell will be judged according to the vehicle and your country’s rules, and the decat part remains reserved for track use. 304 stainless steel or titanium around 40% lighter: the GranTurismo takes both, in brushed, gold or purple for the latter.
Maserati GranTurismo / GranCabrio V6 exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicles | Maserati GranTurismo V6, new generation, and GranCabrio V6 (from 2025) |
| Engine | Turbo V6, 490 hp and 600 Nm |
| Years | Since 2023 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control if the car has it, otherwise the Rog remote |
| Front section (option) | Downpipe with 200-cell or 100-cell catalytic converter, or decat (“Manifold” option on this page) |
| 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 Maserati GranTurismo / GranCabrio V6 exhaust.
Can a previous-generation V8 GranTurismo adopt this V6 exhaust?
No: the GranTurismo V8 4.2 and 4.7 have their own pages and different parts, and the V6 introduced in 2023 is covered here, after checking the serial number.
Does the 2023 GranTurismo’s V6 need an ECU remap?
The factory engine management is enough for the cat-back; an ECU remap only concerns the downpipe, to turn the freed-up flow into power depending on the tune.
Does the GranTurismo V6 fitted with the system need its original downpipe back before the vehicle inspection?
Not necessarily: the 200-cell also keeps the catalytic converter active, and with the valves closed the GT returns to a voice close to standard. A GranTurismo with the 100-cell will be judged according to your country, and a decat GranTurismo remains reserved for the track.
Does the GranTurismo V6 fitted with the system keep its grand touring comfort?
Yes, as soon as the valves are closed, the GranTurismo V6 covers stage after stage without the slightest drone, and its Italian tone returns on demand, via the factory modes or the Rog remote.
Does the GranCabrio V6 take the same system as the GranTurismo?
Yes. The 490 hp GranCabrio V6, unveiled in 2025, uses the engine of the GranTurismo coupé and takes the same Rog system. Your VIN is only used to confirm the version and model year before manufacturing.
Rog expert guide
Maserati GranTurismo 2023: Italian temperament, the complete exhaust system guide
The new GranTurismo takes up the torch with the detuned Nettuno V6 from the MC20: 490 hp and thoroughly modern. Those nostalgic for the V8 miss its voice: that is exactly what our exhaust restores, with the Nettuno's own distinctive...
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.
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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.
-
Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
-
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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