Valved Exhaust System for BMW X1 M35i xDrive U11 B48 2.0T (2023+)
Configuration
BMW X1 M35i U11 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 ratings are not yet available for this model.
Which valved exhaust for a BMW X1 M35i U11?
The Rog system for the BMW X1 M35i xDrive U11 (from 2023) is a valved cat-back exhaust in 304 stainless steel or titanium, built to your VIN for the 300 hp, 400 Nm B48 2.0-litre turbo. If the SUV has factory valves, the driving modes keep controlling them; valves open, the four-cylinder's raspy edge comes through every time you accelerate.
Sound, options and fitting in detail: our BMW X1 M35i U11 guide.
In M35i form, the X1 U11 becomes a compact SUV with a sports car temperament: a 2.0-litre B48 turbo pushed to 300 hp and 400 Nm, four-wheel drive and BMW M development. Strong acceleration, instant response: a real sports car in a family format. This page covers the X1 M35i built since 2023; the previous-generation X1 F48 has its own page.
The B48 has a dry, energetic voice, hoarser than you would imagine for a four-cylinder, with turbo whoosh audible under acceleration. The factory exhaust, still that of a family vehicle, delivers a polished, distant version of it. With the valves open, our cat-back brings out that hoarse grain, with every acceleration and every gear change becoming audible; with the valves closed, the X1 M35i becomes calm and pleasant again, for the school run as for holidays.
Two hours in the workshop are enough: the system, bent for this SUV according to its VIN, connects with clamps and gaskets, no welding. If the X1 has factory valves, the drive modes stay in charge; otherwise, the Rog remote, independent of the mode, takes over.
This page sells a cat-back only: no front section option, an engine and ECU that stay as BMW M set them up, and a system that transforms the voice and slightly lightens the rear, without promising extra horsepower. Tough 304 stainless steel suits an SUV driven all year round; titanium, around 40% lighter for the same design, brings a brushed, gold or purple finish to the tailpipes.
BMW X1 M35i U11 2.0T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicle and chassis code | BMW X1 M35i xDrive U11 |
| Engine | B48, 2.0-litre turbocharged four-cylinder, 300 hp and 400 Nm |
| Power in kW | 221 kW |
| Years | 2023+ |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory drive modes or the Rog remote |
| 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 X1 M35i U11 2.0T exhaust.
Are the most recent X1 M35i models covered?
Our page only describes the first two years of production; for a younger model, the VIN lets us check compatibility with no obligation.
Does the X1 M35i need an ECU remap once fitted?
No, the cat-back works with the original map, and no Stage 2 figure is published on the page for this model; so we do not quote one.
BMW X1 M35i xDrive U11 B48 2.0T with a Rog exhaust: what should you know about vehicle inspection?
With the valves closed, it returns to a sound close to stock; this cat-back only replaces the rear section of the exhaust, without changing anything else in the factory system or the engine.
Do the X1 M35i’s driving modes still control the valves?
If the SUV left the factory with valves, yes: the exhaust takes over their control. Otherwise, the Rog remote opens and closes whatever the mode.
Can a 300 hp family SUV stay discreet?
Yes, with the valves closed it keeps its factory calm, for town and long journeys alike; the B48’s voice only appears when you ask for it.
BMW X1 M35i U11 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 X1 M35i U11 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 X1 M35i U11
For a BMW X1 M35i xDrive U11, the best valved exhaust is the one made to your VIN, with a sound you choose, to bring out the grain of the B48. That is what the Rog exhaust offers: a cat-back...
In detail
Rog Advisor
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Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
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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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