Valved Exhaust System for BMW 330i B48 F30 / F31 2.0T (2016-2019)
Configuration
BMW 330i B48 F30 / F31 Valved Exhaust System (2016-2019)
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 330i B48 F30 / F31 exhaust in detail.
In 2016, the 330i F30 saloon debuted the B48, a 2.0-litre four-cylinder from BMW’s modular family: 252 hp and 350 Nm, with the same displacement as the N20 in the 320i and 328i but a more recent design. 330i F30 saloons and F31 Tourings registered from 2016 to 2019 fall under this page. The N20,320i and 328i share the system, the six-cylinder 340i has its own, and each has its own page.
The B48 is flexible and vigorous, but the factory exhaust filters it from end to end, until only a breath remains. Under load, though, it has a dry, dense voice that gains bite as the boost rises. Open the valves on the Rog cat-back and the 330i finally lets you hear its acceleration, with a more present bass at start-up; close them, and it regains the serenity of a touring saloon.
The garage of your choice fits it in about two hours, without any welding, since each pipe arrives bent to your saloon’s VIN and connects with clamps and gaskets. If your 330i has factory valves, their control through the driving modes is retained; otherwise, the two-button Rog remote works whatever the mode.
Offered under the “Manifold” option, the B48’s downpipe carries the catalytic converter at the turbo outlet; without a suitable map, it only changes the voice and lightens things slightly. Three levels exist: 200-cell for a saloon that keeps its emissions control, 100-cell accepted or not depending on the vehicle and your country’s rules, and a decat version reserved for track use. As for the material, 304 stainless steel remains the understated choice, while titanium brings around 40% less weight and a brushed, gold or purple finish.
BMW 330i B48 F30 / F31 2.0T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicles and chassis codes | BMW 330i F30 saloon and F31 Touring |
| Engine | B48, 2.0-litre turbocharged four-cylinder, 252 hp and 350 Nm |
| Years | 2016-2019 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory drive modes or the Rog remote |
| Front section (option) | Downpipe with 200-cell or 100-cell catalytic converter, or decat |
| Fitting | No welding or cutting, about 2 hours |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the BMW 330i B48 F30 / F31 2.0T exhaust.
Is the 330i F31 Touring compatible with this system?
Yes. The F30 saloon and the F31 Touring take the same Rog system: same chassis, same B48, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
What can an ECU remap bring to the 330i B48?
The page does not publish a Stage 2 figure for this version, and we do not invent one; bear in mind that the cat-back works with the factory map, and that the downpipe only translates into power with an ECU remap by an approved tuner.
Which 330i F30 should be presented to the inspector, and in what state?
Presented with the valves closed, with the cat-back alone or the 200-cell downpipe, it keeps its catalytic converter and a sound level close to standard; 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.
330i B48 or 320i N20: is the system the same?
Yes, the F30 body and the displacement are identical, and the guide presents a single system for all three versions; each engine nevertheless keeps its own page, and the VIN confirms yours.
Can a 330i’s B48 drone on the motorway?
With the valves closed, no: the gases pass through the silencer designed for cruising and the saloon stays composed, even on a long journey at a steady speed.
BMW 330i B48 F30 / F31 2.0T: 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.
BMW 330i B48 F30 / F31 2.0T: 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
Best valved exhaust for BMW 320i, 328i and 330i F30 / F31
For a BMW 320i, 328i or 330i F30, and the F31 Touring, the best valved exhaust is the one made to your VIN, with a sound you choose. That is what the Rog exhaust offers: a cat-back in 304 stainless...
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
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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.
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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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