BMW X3 G45
BMW X3 (G45) by dÄHLer Competition Line
Our dÄHLer team, based in Belp near Bern, Switzerland and led by Christoph Dähler, delivers a significant performance boost for the BMW X3 M50 G45. Output is increased from 398 hp and 580 Nm (428 lb-ft) to an impressive 452 hp and 670 Nm (493 lb-ft).
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For drivers seeking not only a technical upgrade but also visual individualization, dÄHLer offers its proven CDC2 forged wheels. In addition, we provide a sport exhaust system for the BMW X3 M50 G45, delivering a deep, sporty exhaust note.
dÄHLer Engine Performance Tuning X3 M50
QUICK FACTS
EU Version -> US Version
Max HP gain:
54 hp / 40 kW -> 52 hp US
Max Torque gain:
90 Nm (65 ft-lbs) -> 65 ft-lbs US
Standard power:
398 hp (293 kW) -> 393 hp
580 Nm (428 ft-lbs) -> 428 ft-lbs
Enhanced power:
452 hp (332 kW) -> 445 hp
670 Nm (494 ft-lbs) -> 493 ft-lbs
Based on 98 octane -> 93 octane US
Available for other engine types and countries.
Features - Engine Upgrade
FEATURES
- Works with all BMW X3 M50 (worldwide)
- Other engine type X3 G45 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 X3 G45 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
DESCRIPTION – We don’t push it over the limits
The dÄHLer Engine Performance Tuning Module for the BMW X3 G45 delivers a significant increase in power and torque while maintaining full factory safety margins. Designed to work seamlessly with the OEM BMW ECU, the system integrates via OEM-style plug-and-play connectors and installs in approximately one hour.
The module is fully reversible to stock, leaves no fault codes, and requires no reprogramming. It optimizes fuel, ignition, boost, and rail pressure parameters based on load and engine speed, ensuring smooth, reliable performance at all times.
An included adapter allows the vehicle to be returned to its original state without removing the wiring harness—ideal for workshop visits.
SAFETY & COMPATIBILITY
All factory engine safeguards remain fully active, including overload protection and warm-up protocols. The dÄHLer tuning module is unaffected by BMW software updates, retains full diagnostic and service access, and is undetectable by standard diagnostic tools.
A valet connector is included, allowing the engine to run on factory maps within minutes. No traces are left behind—just pure, reliable performance.
dÄHLer ATTC – A power pedal with extra features and app control
Give your ALPINA or BMW a new way of anti-theft protection and at the same time a way better engine response with the dÄHLer Anti-Theft Throttle Commander combined with all Power Pedal features. Controlling of the dÄHLer ATTC via your smartphone is just one of the awesome features of our device.
Anti-Theft System
The revolutionary dAHLer anti theft system comes with an Anti-Theft Mode, a Valet Mode, Power Pedal Mode and is a must have if you want to protect your ALPINA or BMW against theft.
You control your dAHLer Anti-Theft Throttle Commander – ATTC with the included remote control unit without losing sight of the essentials.
How does the ATTC work?
Our module, wiring harness and remote (Anti-Theft System) can be installed in any ALPINA, BMW, BMW M, BMW Plug-in Hybrid and BMW Electric vehicle with an electronic gas pedal and is ready for use immediately after installation.
It’s is a direct plug into the existing (OEM) harness.
The dAHLer Anti-Theft Throttle Commander disables the accelerator pedal on the next vehicle start. This makes it impossible to rev-up the engine without having the dAHLer remote control.
Criminals might be able to crack the signal, open the door, even start the engine and shift in gear, but this is where the story ends. They are unable to move the car.
It is not necessary to activate the Anti-Theft mode again after each stop. The function remains activated by default until the function is deactivated again.
Grand Theft Auto - Is it really that simply to steal a modern car?
Unfortunately, it is absolutely simple, takes 2 minutes with the right technology which is mostly in the hands of criminals.
In vehicles with a keyless go or a similarly functioning system, theft is carried out by means of a relay attack.
Criminals try to intercept signals
It has been known for years that the trick works in front of single-family homes, in parking lots, even while you sit in coffee shop, where there is often only a short distance between the car and the car keys. But underground car parks in large apartment buildings? Yes, perpetrators also run through the stairwells of apartment buildings and try to intercept signals on the apartment doors.
Nationwide in the United States in 2020, there were 810,400 vehicles reported stolen, up from 724,872 in 2019 and that number has increased dramatically in the last two years.
Accelerator pedal tuning
In modern BMW cars when you step on the throttle, you’re not moving a linkage anymore. You’re actually sending a signal to a computer and most of these new BMW have a lot of what is termed dead pedal.
You step on the pedal and it takes one or two inches of travel before anything happens in the vehicle. After the install of the the dAHLer Anti-Theft Throttle Commander ATTC the gas pedal response will improve immediately.
Does it give you any more power?
No, the dAHLer ATTC with Power Pedal features doesn’t give you any more engine power but it makes the vehicle feel a lot more responsive and instead of pushing the gas pedal all the way into the carpet to get maximum engine performance power, you can push the pedal halfway down and your BMW will accelerate like you had it all the way down.
With the dAHLer ATTC device installed there are a lot more responsive and making your car act like a hot rod!
BMW X3 M50 Sport Exhaust System by dÄHLer
We offer a sport exhaust system for the BMW X3 M50 G45 delivering a deep, sporty exhaust note.
Available are 2 stages as special package deals (please read description below for details).
-EPA compliant (Stage 1)
-Works with ALL X3 M50 models
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A standout feature is the dÄHLer 4-pipe stainless-steel sport exhaust system, delivering a deep, sporty, and unmistakable dÄHLer signature sound. Finished with 101 mm ceramic-coated exhaust tips, the system combines striking looks with exceptional durability and heat resistance.
Engineered to integrate perfectly with the factory engine, the exhaust installs without reprogramming and does not trigger any check engine warnings. It is compatible with all BMW X3 M50 models worldwide, with or without OPF filters, and is TÜV approved, European-homologated, and EPA compliant.
The dÄHLer sport exhaust system for the BMW X3 M50 G45 features a high-flow, valve-controlled stainless-steel performance muffler and is available in two sound stages.
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).
dÄHLer IP68 Rated Valve Controller
The new 2025 IP68 rated waterproof dÄHLer Valve Control Modular
What does the new IP68 rated mean?
How does it work?
MFM Mode
EOP Mode
Worldwide Product Warranty
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More Information
BMW X3 G45 FORGED 21 inch Wheel Set CDC2 – Smoke Black Edition
Made in Germany
The dÄHLer CDC2 forged wheels are available for the BMW X3 G45 in sizes 9.5 x 21 for the front axle and 10.5 x 21 for the rear axle.
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Aesthetically, the wheel integrates perfectly into the overall appearance of the BMW X3 G45. Available in using state-of-the-art manufacturing technology, dÄHLer has engineered a wheel that meets the highest standards with maximum strength and minimal weight.
We ship worldwide!
Give us a call or drop us an email to learn about what we can offer to customize your BMW X3 G45.