Valved Exhaust System for BMW X3 N55 F25 3.0T (2011-2017)
Configuration
BMW X3 N55 F25 Valved Exhaust System (2011-2017)
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 X3 N55 F25 exhaust in detail.
Behind its family SUV looks, the X3 F25 with the N55 engine hides a 3.0-litre inline-six, boosted by a single twin-scroll turbo and fitted with Valvetronic: 306 hp and 400 Nm, backed by xDrive all-wheel drive. Built from 2011 to 2017, it accelerates with a vigour its appearance does not suggest. The 2.0-litre four-cylinder X3 and the X3 M40i G01 have their own pages.
The BMW inline-six has a round, continuous sound that brightens as the revs climb, with a slight turbo whoosh. In the factory X3, the exhaust makes it sound like any old engine. Open the valves on our cat-back: the N55 gains roundness at idle, and its climb through the revs can be heard clearly in a tone that remains refined; close them, and the X3 becomes the quiet SUV for holiday departures again.
The workshop receives a system bent to your X3’s VIN, which it fits without welding using clamps and gaskets in about two hours; the factory valve control is retained where it exists, otherwise replaced by the two-button Rog remote.
Behind the turbo, the “Manifold” option sells the N55 downpipe with its catalytic converter; fitted alone, it works on voice and weight, not power. This SUV’s N55 keeps its emissions control behind a 200-cell downpipe, ideal for weekday driving; the 100-cell is accepted or not depending on the car and the rules in your country, with the decat version reserved for track use. Finally, this valved cat-back can be ordered in 304 stainless steel for its robustness, or in titanium, around 40% lighter, available in three colours.
BMW X3 N55 F25 3.0T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicle and chassis code | BMW X3 F25 with the N55 engine, xDrive |
| Engine | N55, 3.0-litre turbocharged inline-six, 306 hp and 400 Nm |
| Years | 2011-2017 |
| 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 |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the BMW X3 N55 F25 3.0T exhaust.
Is the first-year six-cylinder X3 F25, from 2010, covered?
This model year does not appear on our page, which starts in 2011; give us your X3’s VIN: we check compatibility and reply before manufacturing.
What does the X3 N55 become once remapped?
The page quotes 368 hp and 557 Nm at Stage 2, a result that also depends on the automatic gearbox and maintenance; it assumes a downpipe and map, whereas the cat-back fits an otherwise stock X3.
BMW X3 N55 F25 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.
Why does the X3’s inline-six seem so ordinary from the factory?
Because an SUV’s sound insulation and a heavily muffled system form a double screen; our cat-back removes one of them with the valves open, without affecting comfort with them closed.
Stainless steel or titanium for an X3 driven in the mountains in winter?
304 stainless steel is built for salt and damp; titanium, which does not rust either, is around 40% lighter for the same design and adds a colour.
BMW X3 N55 F25 3.0T: 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 X3 N55 F25 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 X3 N55 F25: the straight-six hidden in an SUV, the exhaust system guide
Behind its family SUV looks, the X3 F25 with the N55 engine hides a 3.0-litre turbocharged straight-six with 306 hp. It accelerates with ease and keeps the smoothness typical of BMW straight-sixes. The factory exhaust, for its part, does everything...
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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