Valved Exhaust System for BMW 320i / 328i N20 F30 / F31 2.0T (2012-2016)
Configuration
BMW 320i / 328i N20 F30 / F31 Valved Exhaust System (2012-2016)
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 ratings are not yet available for this model.
The BMW 320i and 328i N20 F30 / F31 exhaust in detail.
Until 2016, the 320i and 328i F30 sedans and F31 Tourings receive the N20, a 2.0-litre four-cylinder with direct injection and a twin-scroll turbo. The 320i draws 184 hp and 270 Nm from it, the 328i 245 hp and 350 Nm, with abundant torque very early that gives firm acceleration across the whole usable range. The B48,330i that succeeded them in 2016 uses the same system but has its own page, as does the 316i.
A 2.0-litre turbo has a sharper voice than you might imagine, deep at idle then harder under load, with the whoosh of the turbine in the background. In the stock F30, this character shrinks to a murmur that only attentive passengers notice. With the valves open, our cat-back fills out the bass, lets you hear the acceleration and gives depth to every climb through the revs; with the valves closed, the F30 becomes the composed sedan again that goes unnoticed in the office car park.
Fitting, without welding, relies on band clamps and gaskets: about two hours on a lift, for a system built to your VIN. The factory valve control is kept if your sedan has one; otherwise, the Rog remote, linked to a unit in the trunk, takes charge.
Behind the “Manifold” option lies the N20’s downpipe, which houses the catalytic converter at the turbo outlet. On its own, it adds a little sound and removes a few kilos; it is the map that turns it into power. A company 328i keeps its catalytic converter with the 200-cell variant; the 100-cell version is accepted or not depending on the car and the rules in your country, and the decat version is reserved for track use. 304 stainless steel suits most F30s, titanium, around 40% lighter, those who want a colour.
BMW 320i / 328i N20 F30 / F31 2.0T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicles and chassis codes | BMW 320i and 328i F30 sedan and F31 Touring |
| Engine | N20, 2.0-litre turbocharged four-cylinder, 184 hp / 270 Nm (320i) or 245 hp / 350 Nm (328i) |
| Years | 2012-2016 |
| 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 320i / 328i N20 F30 / F31 2.0T exhaust.
Does the 320i F31 Touring take the same system as the sedan?
Yes. The F30 sedan and the F31 Touring take the same Rog system: same chassis, same N20, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
320i or 328i: what does an ECU remap with a downpipe deliver?
According to the published Stage 2 figures, the 320i rises to 280 hp and 450 Nm and the 328i to 320 hp and 480 Nm, provided a downpipe and a map are combined at an approved centre; the cat-back alone works with the standard electronics.
For the vehicle inspection, which 320i F30 configuration is best?
The most sensible, which is also the most common: cat-back only or 200-cell downpipe, and valves closed before entering the test centre, for a sedan that keeps its catalytic converter and a stock voice; 100-cell versions are accepted or not depending on the vehicle and your country’s rules, and the decat version is reserved for track use.
Does my 2016 320i still have the N20?
It is likely up to the switch to the B48, which BMW introduced in the 330i in 2016; the simplest option is still to send us your VIN: we identify the engine before manufacturing.
Does an equipped company sedan stay discreet day to day?
Yes: with the valves closed, the gases flow through the muffler and the 328i stays as hushed as it was on delivery, in town as on the highway; you only open them when the journey suits.
BMW 320i / 328i N20 F30 / F31 2.0T: Does a valved exhaust system drone?
No. With the valves closed, the gases flow through the whole rear muffler 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 highway.
BMW 320i / 328i N20 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
A 320i, 328i or 330i F30 deserves a valved exhaust: it finally gives the 2.0-litre turbo some presence, and the sedan becomes serene again at the touch of a button. Built from the VIN of your 3 Series in 304...
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 Canada.
Inspections in Canada
A Rog cat-back leaves your factory catalytic converter, oxygen sensors and OBD untouched, and valves closed, your car sounds very close to stock at a safety inspection. Sport cats follow your province's rules, the catless version is for the track only, and your province decides.
On the road
Valves closed around town, your car sounds very close to stock, and you open them whenever you like.
Your documents
Each system is built from the VIN on your vehicle registration, and we send its technical documentation free on request, for an inspection or for your insurer.
Your insurance
Tell your insurer before installation: 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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