BMW X1 U11
BMW X1 U11 by dÄHLer Competition Line
The BMW X1 M35i U11 is already a powerhouse, delivering 300 hp and 400 Nm (295 lb-ft) of torque—but dÄHLer raises the bar. With their performance upgrade, output climbs to an impressive 352 hp and 480 Nm (354 lb-ft) of torque.
The transformation goes beyond the engine. A bespoke quad-pipe stainless steel exhaust with 100-mm ceramic-coated tips gives the X1 a bold, aggressive presence. Opt for the valve-controlled version to fine-tune the exhaust sound whenever you want.
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With dÄHLer enhancements, the BMW X1 M35i U11 gains more than just performance—it earns a distinctive, sporty sound and a striking visual identity. Every component is engineered for perfect integration, full reversibility, and uncompromising quality, making these upgrades the ideal choice for enthusiasts who demand both power and style.
dÄHLer Engine Performance Tuning X1 M35i
QUICK FACTS
EU Version -> US Version
Max HP gain:
52 hp -> 38 hp
Max Torque gain:
80 Nm -> 59 ft-lbs)
Standard power:
300 hp (221 kW) -> 317 hp
400 Nm -> 295 ft-lbs
Enhanced power:
352 hp (259 kW) -> 355 hp
480 Nm -> 354 ft-lbs
Based on 98 octane -> 93 octane US
Available for other engine types and countries.
Features - Engine Upgrade
FEATURES
- Works with all BMW X1 M35i (worldwide)
- Other engine type X1 U10 models available
- No removal of the DME required
- Controlling of the Performance Tuning via your smartphone
- Quick Plug & Play Installation
- Runs as smoothly as stock
- Compatible with all driving modes
- Fuel economy unchanged during normal driving
- 93 octane or less compatible tuning maps (US)
- Not VIN locked, can be removed without a trace and resold down the road
- Developed in Switzerland and Made in Germany
- Tested on the German Autobahn
- Comes with TUV Part Approval (emission tests according to WLTC regulations)
- USA -> EPA compliant
- Worldwide 3-year product warranty
App Control
App Control
Controlling of the dAHLer Engine Performance Upgrade for the BMW X1 U11 via your smartphone is just one of the awesome features of our tuning module.
With our tuning module you have the option to choose your own and fully customizable driving program. Wirelessly connect the dAHLer engine tuning performance module to your Bluetooth 4.0 compatible iOS and Android device via the free dAHLer Mobile app.
This option allows you to change 3 different performance maps, and update the firmware worldwide as we release free newer versions with updates, more powerful maps. If desired the extra power can be easily switched on or off with your smartphone, even while driving.
Our app includes a configurable warm-up timer, so the pilot can decide how long warming up is needed before using the engine tuning. A separate Mobile app purchase is not required!
We will provide you the app after the purchase of our engine performance upgrade free of charge.

About our technology
UNLEASH THE BEAST – SAFELY
The dÄHLer Engine Performance Tuning Module transforms your BMW X1 U11 from a capable ride into a powerhouse—delivering clean, safe, and unstoppable performance. With a plug-and-play design and OEM-style connections, installation is quick, simple, and fully reversible. No errors, no check-engine lights, no hassle.
At its core, an advanced control unit optimizes your stock BMW ECU, refining fuel, ignition, and boost commands for maximum torque and horsepower. All factory safeguards remain fully intact—overload protection, warm-up routines, and driveability are untouched.
Unlike other tuners, dÄHLer’s module is BMW software update-proof and retains full service accessibility. A convenient valet connector lets you instantly revert to stock settings, leaving no trace behind.
Why settle for stock when your X1 can dominate the road?
Fast install. Massive power. Total control. The dÄHLer tuning module is the smartest, easiest, and most aggressive upgrade your BMW X1 U11 can get.
BMW X1 M35i Sport Exhaust System by dÄHLer
Elevate your BMW X1 M35i U10 with dÄHLer’s sport exhaust system and enjoy a deep, aggressive, and unmistakably sporty tone.
Select from two distinct sound stages with tailored package options—see below for full details.
-EPA compliant
-Works with ALL X1 M35i models
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The dÄHLer 4-pipe stainless steel sport exhaust delivers a deep, sporty, and unmistakable signature tone. With 101-mm ceramic-coated tips, it pairs aggressive styling with long-lasting durability.
Engineered for seamless integration, installation requires no reprogramming and is compatible with all BMW X1 M35i models worldwide—whether equipped with OPF filters or not. TÜV-approved, European-homologated, and EPA-compliant, the system features a high-flow, valve-controlled performance muffler with two selectable sound stages, giving you complete control over your driving soundtrack.
Learn More about Stage 1 - 2
Stage 1:
The dÄHLer exhaust system includes a high-flow, stainless-steel performance muffler and comes with exhaust valves by using the original BMW actuators.
(mainly European models)
Stage 2:
With the stage 1 package comes our dÄHLer IP68 Rated Valve Controller and is a must have if you like to control the sound of your car. Check the Package Deal in the select menu, ending with Stage 2
With the device installed you can manually open and close the standard built-in exhaust valves of your exhaust system at any time.
Notice: Stage 2 is not available for cars without stock valve control system (mainly outside Europe).
No check engine lights, no re-programming of your car or anything silly is required after installation (EPA compliance).
BMW X1 U11 FORGED 21 inch Wheel Set CDC2 – Smoke Gray Edition
Made in Germany
The dÄHLer CDC2 forged wheels are available for the BMW X1 U11 in sizes 10.5 x 21 for the front axle and 10.5 x 21 for the rear axle.
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dÄHLer CDC2 Forged Wheels
Give your BMW X2 an aggressive, commanding stance with 21-inch dÄHLer CDC2 forged wheels. Sized 10.5 x 21 for both front and rear, and fitted with 245-mm-wide tires, they perfectly fill the X2’s massive wheel arches. Available in multiple color finishes, these wheels let you personalize your ride while combining lightweight performance with striking style.
We ship worldwide!
Give us a call or drop us an email to learn about what we can offer to customize your BMW X1 U11.



















