For the BMW Z4 Roadster M40i sDrive30i sDrive20i G29 dAHLer offers a broad range of BMW tuning performance products. Our TUV approved engine tuning works with cars before and after production 06/2020!
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Available are lowering kits, a 21” forged wheel and tire set, exhaust valve controller, glass wind deflector, carbon fiber front lip, and other high-performance tuning components will transform your stock BMW Z4 Roadster M40i sDrive30i sDrive20i G29 into a true power Roadster.
BMW M40i: Engine Performance Tuning
QUICK FACTS
EU Version -> US Version
Max HP gain:
68 hp (50 kW) -> 50 hp US
Max Torque gain:
100 Nm -> 74 ft-lbs US
Standard power:
340 hp (250 kW) -> 382 hp US
500 Nm -> 369 ft-lbs US
Enhanced power:
408 hp ( kW) -> 432 hp US
600 Nm -> 443 ft-lbs US
Based on 98 octane -> 93 octane US
Features - Engine Upgrade
FEATURES
- Works with cars before and after production 06/2020
- No removal of the DME required
- Controlling of the Performance Tuning via your smartphone
- Quick Plug & Play Installation
- Runs as smoothly as stock, this is how your BMW should have come from the factory
- Compatible with all driving modes
- Fuel economy unchanged during normal driving
- 93 octane or less compatible tuning maps
- 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 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
Our Engine Performance Tuning Module for the BMW Z4 Roadster M40i sDrive30i sDrive20i G29 integrates flawlessly to extract maximum power and torque without faults and errors – just flawless. The harness has OEM style plugs to connect in-line with each boost pressure sensor and the camshaft position sensor on the engine.
Our Engine Performance Tuning Module for the BMW Z4 Roadster M40i sDrive30i sDrive20i G29 is completely reversible to OEM specs and installs in less than 45 minutes just in a few simple steps. This will be a safely upgrade which makes this the easiest and most effective power upgrade you will ever make on your BMW Z4 Roadster M40i sDrive30i sDrive20i G29. For a substantial increase in power output, with minimal downtime for installation, full serviceability, and can be reverted back to stock then this Engine Performance Tuning Module power upgrade is best!
Inside our dAHLer Engine Performance Tuning Module is an advanced control unit that is designed to optimize and work with the factory BMW ECU. BMW Z4 Roadster M40i sDrive30i sDrive20i G29 maps and algorithms within the control unit have been elevated for this BMW engine, sending improved fuel and ignition parameters to the stock ECU to control boost depending on load, engine speed, and other factors.
Also included in the scope of delivery is an adapter which, when installed, returns the vehicle to its original state without having to remove the cable harness of the dAHLer engine performance upgrade. This can be used, for example, at a workshop appointment.
SAFETY
With our Engine Performance Tuning Module all of the factory safeguards of your BMW Z4 Roadster M40i sDrive30i sDrive20i G29 remain in place, including overload protection and warm-up protocols to preserve longevity and factory drive-ability. One of the amazing advantages of this type of system is that it is unaffected by factory BMW updates and service.
If BMW updates the computer software of the BMW Z4 Roadster M40i sDrive30i sDrive20i G29 our Engine Performance Tuning Module is not lost or overwritten. This is where competitor tuning modules fall short! This is just another key aspect of our module because BMW is constantly releasing small software updates. All of the factory diagnostics and service access is retained.
The Performance Tuning Module is undetectable to plug-in diagnostic readers and it leaves no traces behind. A valet connector is included and installs in minutes to bypass the Engine Performance Tuning Module and revert the car to factory settings. With the valet plug installed the BMW engine computer will use the stock maps instead of getting modified data from the Engine Performance Tuning Module.
dÄHLer ATTC – A power pedal with extra features and app control
Give your 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 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 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 Z4 Roadster: Exhaust Valve Controller
The dAHLer Exhaust Flap Controller Module for the Z4 Roadster M40i sDrive30i G29 was developed in Switzerland and manufactured in Germany and is a must have if you like to control the sound of your car.
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Our Exhaust Flap / Valve Control Module for the Z4 Roadster M40i sDrive30i G29 has one plug and one socket per exhaust flap. Installation is pretty simple. You pull out the original plug and connect it to the socket. The other plug is then connected to the socket on the exhaust flap and the connection is done.
As our Exhaust Flap / Valve Control Module operates as minimally in the vehicle as necessary, it does not does not leave an error message. When the Z4 Roadster M40i sDrive30i G29 goes to the BMW workshop for maintenance, no errors appear on the DIS machine.
The system has been checked and is it not causing any damage to the Z4 Roadster M40i sDrive30i G29. Each of our systems is individually checked for function after assembly and subjected to quality assurance. All Modules are made in Germany by a team of specialists at an ISO 9001:2015 certified facility.
Exhaust Flap / Valve Control Module for the Z4 Roadster M40i sDrive30i G29 is built to be safe from the ground up, so that it cannot interfere with the data bus, for example.
The Module is permanently resistant up to +80° C (176° F). As a rule, you don’t need any additional heat protection.
Exhaust Flap Controller Installation Video
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dÄHLer CDC2 design 21 inch FORGED Wheels for all BMW BMW Z4 G29
– Smoke Black Edition –
21 inch FORGED wheels – SMOKE BLACK EDITION – The delicacy and the true greatness for all BMW Z4 G29 Roadster G29. Where others draw a final Line at 20″, dÄHLer provides your Roadster car the finishing touch.
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High-quality, exclusive and ultra-light 21 inch FORGED wheels. Using state-of-the-art production technology, dÄHLer has designed a wheel named CDC2 which meets the highest demands with maximum strength and at the same time the lowest weight.
The wheel is aesthetically optimally integrated into the overall appearance of the BMW Z4 Roadster G29 and thus supports the powerful appearance in a harmonious way due to its optimal size.
– Made in Germany
– Ultra light FORGED material
– High-quality paint (powder coating) for perfect protection of the surface
– Significantly improved longitudinal and transverse dynamics
– Significantly improved acceleration and deceleration values due to the lower, accelerated mass
– Improved and more agile handling and steering behavior
– Individual design and only available for BMW & BMW M cars
– Engineered and tested to work perfectly with modern BMW & BMW M cars
– Wheel and tire packages come with high-class Michelin tires
– Great longevity, material quality and durability
– 2-year worldwide warranty
All dÄHLer CDC2 21 inch FORGED wheels are manufactured at an ISO 9001:2015 certified facility, in Germany according to the latest regulations to fulfill the highest safety standards. Machining process takes place in fully automated production lines using the latest technology.
dÄHLer Full Carbon 3 Piece Front Splitter Lip BMW
A dÄHLer Full Carbon 3 Piece TUV approved Front Splitter for the BMW Z4 Roadster G29 will perfect the looks of your vehicle. This carbon fiber front lip not only looks amazing, it’s also aerodynamically designed to give your M more downforce.
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The by the TUV approved dÄHLer carbon fiber 3 piece front lip fits perfectly onto your BMW Z4 Roadster G29.
This front lip not only looks amazing, it’s also aerodynamically designed to efficiently channel air and reduce drag. Form and function packed into one gorgeous and lightweight product that will definitely make you fall in love with your car all over again.
Made from authentic, hand laid carbon fiber material, epoxy resin and then finished in a durable gloss clear coat for UV-protection and extra durability. Every of our carbon aerodynamic parts is made from high-quality 3K twill wave carbon with a UV coat to prevent yellowing. It can be maintained with ease just like the paint on your car.
The dÄHLer carbon fiber front lip for the BMW Z4 Roadster G29 consists of 3 parts for easy shipping at low cost worldwide.
True to the motto: Exact like a Swiss clockwork, the dAHLer carbon fiber front lip for the BMW Z4 Roadster G29 meets the highest demands in optics and fitting accuracy. A great success for us that it’s extremely lightweight at maximum strength.
This dÄHLer lip installs simply using the original fastening points.
THE Z4 – BMW Z4 Roadster: Performance Lowering Kit
Performance Lowering Springs are the first step in suspension performance enhancement. A dAHLer lowering kit for the BMW Z4 Roadster G29 is a performance spring set created for the serious enthusiast.
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A sports spring set with the lowest possible drop but with the exceptional ride quality you expect from a high-class tuner like dAHLer.
Using progressive spring technology to lower the vehicle’s center of gravity.
This proprietary progressive design delivery, both a smooth softer initial spring rate for exceptional ride quality combined with a stiffer final rate for high performance handling of your BMW Z4 Roadster G29.
The benefits of a lower stance are many. Let’s begin with the performance advantages of a dAHLer sports spring set installed in your BMW Z4 Roadster G29.
A dAHLer lowering spring equipped BMW Z4 Roadster will exhibit reduced body roll in corners as well as reduce squat during acceleration and diminish nosedive under braking.
Another performance advantage that is often overlooked is the reduced drag coefficient. A dAHLer sports spring set for the BMW Z4 Roadster provides the ultimate balance between high performance, extreme lowering and comfortable ride quality.
THE Z4 – BMW Z4 Roadster: Glass Wind Deflector
A dAHLer Glass Wind Deflector for your BMW Z4 Roadster G29 is from high-quality, made of 5 mm tempered safety glass and meets the highest demands in optics and fitting accuracy.
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Made in Germany and approved by the German TUV.
The glass wind deflector is simply pushed into the original BMW Z4 Roadster holding devices and clicks into place.
In case of an accident our high-quality glass wind deflector would break into a thousand small pieces, just like all other series parts such as the windshield, side or rear window. So, you are still absolutely safe on the road with our glass wind deflector installed in your BMW Z4 Roadster G29.
Another advantage over the cheap plastic variants that are on the market is the fact that our glass wind deflector does not vibrate when the engine is running. For example, if you look in the rear- view mirror at the traffic lights, the view is absolutely clear. No flickering or similar annoyance.
Another safety aspect is the fact that our glass wind deflector for your BMW Z4 Roadster G29 still offers a very good view in the twilight. Even with the roof closed, our glass wind deflector does not restrict your view in any way.
THE Z4 – BMW Z4 Roadster G29: Test Drive
dAHLer enhanced BMW Z4 Roadster M40i ( Cindy Allemann / professional driver)
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Give us a call or drop us an email to learn about what we can offer to customize your BMW Roadster.