Valved Exhaust System for BMW 335i GT F34 3.0T (2013-2016)
Configuration
BMW 335i GT F34 Valved Exhaust System (2013-2016)
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 BMW 335i GT F34 exhaust in detail.
The 335i GT F34 combines the hatchback space and longer wheelbase of the 3 Series Gran Turismo with the six-cylinder that topped its petrol range: the N55, 3.0 litres, single twin-scroll turbo and Valvetronic, for 306 hp and 400 Nm. The cars built from 2013 to 2016 are those covered by our page. The four-cylinder 320i and 330i GT have their own page.
This engine has a real voice, inherited from a long line of BMW inline-sixes: round, even, slightly hardened at high revs. On the standard GT, silencers designed for the acoustic comfort of a long-distance cruiser reduce it to a whisper. With the valves open, the Rog cat-back brings out that roundness from start-up and lets a hoarser tone build under load; with the valves closed, the 335i GT goes back to being the quiet, relaxing touring car for long stages.
Installation touches neither the tailgate nor the bodywork: clamps, gaskets and about two hours on a lift are enough for a system bent to your VIN. The valves stay controlled by the original switchgear if the car has it; otherwise, the Rog remote and its box in the boot take over.
The front part, offered under the “Manifold” option, is the N55’s downpipe, with its catalytic converter; fitted on its own, it affects the sound and the weight, and it is the ECU remap that converts it into horsepower. On a grand tourer that covers thousand-kilometre stages, the 200-cell keeps the catalytic converter at work; the 100-cell is accepted or not depending on the vehicle and your country’s rules, and the decat version is reserved for track use. As for material, 304 stainless steel accompanies the N55’s round tone, while titanium lightens it by around 40%.
BMW 335i GT F34 3.0T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicle and chassis code | BMW 335i Gran Turismo F34 |
| Engine | N55, 3.0-litre turbocharged inline-six, 306 hp and 400 Nm |
| Years | 2013-2016 |
| 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 |
| Fitting | Clamps and gaskets, no welding, about 2 hours on a lift |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the BMW 335i GT F34 3.0T exhaust.
Is the 335i GT system the same as the 335i F30 saloon system?
No, the Gran Turismo has a longer wheelbase and its own system, described here; the 335i F30 has its own page. Your VIN confirms compatibility before manufacturing.
Remapping the 335i GT: for what figures?
The published figures for the Gran Turismo are 368 hp and 557 Nm, torque you feel above all when loaded up, provided a downpipe and an ECU remap go together; the cat-back fits with the stock engine management.
BMW 335i GT F34 3.0T with a Rog exhaust: what should you know about vehicle inspection?
With the cat-back only or the 200-cell sports catalytic converter, emissions control is retained: present the car with the valves closed. The 100-cell brings more sound and flow, and whether it is accepted at the emissions test depends on the car and local rules; the decat version is intended for track use.
Will a six-cylinder Gran Turismo drone on the motorway to the holidays?
No: with the valves closed, the gases run through the cruising silencer and the cabin stays calm, even fully loaded; you open up only on your own initiative.
Which material suits a 335i GT best?
304 stainless steel matches the N55’s round tone and resists winters; titanium is around 40% lighter for the same design and brings a clearer note, with three finishes.
BMW 335i GT F34 3.0T: 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
BMW 335i GT F34: the long-distance traveller's straight-six, the exhaust system guide
The 335i GT F34 combines the space of a hatchback and the stretched wheelbase of the 3 Series Gran Turismo with the 306 hp turbocharged straight-six that tops its petrol range. The result is a fast, comfortable touring car, yet...
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.
-
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.
Customer builds
Your videos & photos
The Rog lines fitted on our customers' vehicles, in real conditions.
- Builds
- 500+
- Brands
- 28
- Satisfaction
- 4,9
The journal
News & advice
Best valved exhaust for the BMW M2 G87
Which valved exhaust for a BMW M2 G87? The options compared (sound, material, valves) and the Rog system made to...
Read the articleBest valved exhaust for the Audi RS3 8Y
Which valved exhaust for an Audi RS3 8Y? The options compared (sound, material, valves) and the Rog system made to...
Read the articleBest valved exhaust for the Mercedes-AMG A45 / A45 S W177
Which valved exhaust for a Mercedes-AMG A45 or A45 S W177? The options compared (sound, material, valves) and the Rog...
Read the articleExhaust rules: what changes in 2026 and 2027 (Euro 7, noise cameras, MOT)
Euro 7, new-car noise, noise cameras, MOT and vehicle inspection, and models: what really changes in 2026 and 2027 for...
Read the articleChanging your exhaust: what inspections and approvals cost in 9 countries
What the periodic inspection and the check of a modification cost after changing your exhaust, in 9 European countries: official...
Read the articleIs a cat-back exhaust legal in Ireland? What the NCT checks.
A cat-back leaves your factory cat, sensors and OBD as they are; valves closed, very close to stock, valves open,...
Read the articleSports exhaust (sportsummuti) in Estonia: what the tehnoülevaatus checks.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Estonia, how...
Read the articleSports exhaust in Latvia: tehniskā apskate and the CSDD noise limit.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Latvia, how...
Read the articleNo article matches this search.
All articles