BMW 3 series G21 Tuning

BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d dÄHLer tuning

THE 3 – BMW 3 series G21 Tuning

Go in the fast lane of life and unleash up to 427 hp (314 kW) and impressive 600 Nm (443 ft-lbs) of torque and control the power via your smartphone with the available dAHLer Competition Line engine performance upgrade and leave a lasting impression with your dAHLer customized BMW 3 series Touring M340i xDrive.

Our Engine tuning performance upgrades work with cars before and after production 06/2020!

For the new BMW 3 series G21 Touring (wagon) in the most powerful versions as M340i xDrive and M340d xDrive in the comprehensively and exclusively performance tuned version as dAHLer Competition Line. Latest BMW 3 series G21 Touring (wagon) stands up to its strength. This leading role is further enhanced by dAHLer Competition Line.

BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d dÄHLer tuning
BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d dÄHLer tuning

BMW M340i / M340d: Engine Performance Tuning

QUICK FACTS

Gasoline -> Diesel

Max HP gain:        
53 hp (39 kW) -> 41 hp (30 kW)

Max Torque gain:
100 Nm -> 80 Nm

Standard power:
374 hp (275 kW) -> 340 hp (250 kW)
500 Nm -> 700 Nm

Enhanced power: 
427 hp (314 kW) -> 381 hp (280 kW)
600 Nm -> 780 Nm

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

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.

dAHLer mobile app settings dAHLer mobile app registration

Performance Tuning for BMW Plug-in Hybrid and BMW Mild Hybrid models

A BMW plug-in hybrid electric vehicle (PHEV) like the BMW 320e Touring G21, BMW 320e xDrive Touring G21, BMW 330e Touring G21 or BMW 330e xDrive Touring G21 is a BMW whose battery can be charged by connecting to an external power source as well as by its board motor and generator, this we all know.

BMW mild hybrid models, however, do not have a purely electric drive. Here, the electric motor offers greater efficiency by replacing the starter and alternator with a single device that supports the drive train.

Choosing a plug-in hybrid BMW can improve the efficiency and you get Federal Tax Credits for New All-Electric and Plug-in Hybrid Vehicles like the 2021 BMW 320e Touring G21, BMW 320e xDrive Touring G21, BMW 330e Touring G21 or BMW 330e xDrive Touring G21.

Do these findings mean that you shouldn’t tune or upgrade a hybrid vehicle?

Hell no!

You have to have driven a performance-enhanced BMW plug-in hybrid or Mild Hybrid model!

Driving a performance enhanced BMW plug-in hybrid like the BMW 320e Touring G21, BMW 320e xDrive Touring G21, BMW 330e Touring G21 or BMW 330e xDrive Touring G21 is more fun than a conventional BMW 320i or 330i thanks to the additional electric motor. The tremendous power development of both drives pushes the driver into the seat.

Specialized in BMW plug-in hybrid performance enhancements

For many years, we have been testing and developing engine performance tuning solutions for BMW plug-in hybrid models and have had some positive experience. You could say that we have specialized in performance enhancements for BMW plug-in hybrids.

With the latest generation of BMW mild hybrid cars, we got the same positive results when it comes to tuning the engine performance.

Since only the power of the gasoline engine of the BMW plug-in hybrid or BMW mild hybrid is increased and both systems work independently of one another, there have been no disruptions in daily driving so far.

The BMW TwinPower Turbo engine in combination with an electric motor and our engine performance tuning offers more power, range and efficiency for your daily journeys.

What about the latest diesel technology?

We offer engine performance tuning for the BMW 318d, 320d, 320d xDrive, 330d, 330d xDrive and M340d xDrive G21 Touring.

Our tune works with BMW cars before and after production date 06/2020 as well as with all latest BMW Hybrid models and is approved by the German TUV (EU homologated) to meet the latest emission standards.

Developed in Switzerland and quality Made in Germany

Inside our Engine Performance Tuning Module for the BMW 318d, 320d, 320d xDrive, 330d, 330d xDrive and M340d xDrive G21 Touring is an advanced control unit that is designed to optimize and work with the factory BMW ECU.

With the dAHLer multi-map technology, up to five channels are optimized in real time – whether common rail, boost pressure, or turbo pressure, our tune controls the most technologically BMW diesel engines of the latest generations in a multi-dimensional multi-map with all relevant engine parameters perfect looking.

The dAHLer Engine Performance Tuning for the BMW 318d, 320d, 320d xDrive, 330d, 330d xDrive and M340d xDrive G21 Touring increases the boost pressure and the amount of fuel by changing the rail pressure by a small amount which results in more power and torque but stays within the BMW engine’s safety regulations.

Another advantage of the dAHLer multi-map technology is compliance with the legal emission values ​​specified for the BMW diesel engine. Due to the combustion optimized in all power ranges, the fuel is used 100% efficiently.

This means that the dAHLer engine performance tuning for the BMW 318d, 320d, 320d xDrive, 330d, 330d xDrive and M340d xDrive G21 Touring can also be used without restriction in vehicles with a diesel particle filter. Compliance with the emission values ​​is confirmed by the TUV certificate.

DESCRIPTION

Our Engine Performance Tuning Module for the BMW 3 series Touring G21 (M340i xDrive, 330i, 320i, 318i) 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 3 series Touring G21 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 3 series Touring G21. 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 3 series Touring G21 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 3 series Touring G21 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 3 series Touring G21, 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.

BMW G20 G21 G22 G23 M440i xDrive dAHLer Tuning engine tune B58

THE 3 – BMW 3 series Touring M340i xDrive G21: Eventuri Intake

Fitment for all BMW 3 series Touring G21 M340i xDrive with B58 engine built after November 2018.

The BMW 3 series Touring G21 M340i xDrive with B58 engine – OEM airbox system was updated in cars built after November 2018 where the airflow sensor was replaced with a temperature sensor in the inlet tube.

The BMW G21 M340i xDrive B58 Eventuri intake has been developed to provide the turbo with a less restrictive flow path whilst maintaining low inlet temperatures.

Crafted from Prepreg Carbon Fiber, the airbox serves 2 objectives – to seal the filter against engine bay heat and to provide a dual cold air feed.

With a smooth inlet track to the MAF tube/Engine inlet and by ensuring Eventuri has an effective cold air supply to the filters, the resultant performance increases translate to an enhanced driving experience:

  • Throttle response is sharper as air speeds in the inlet track are maintained by the Venturi effect
  • Low/mid-range torque is increased which improves general drivability. The car feels more aggressive and eager to drive, like an engine tuning performance.
  • Top end power is increased as the engine is allowed to draw in cold air with less restriction.

Couple the dAHLer engine performance tuning increase for the BMW 3 series Touring G21 M340i xDrive with a more audible and sonorous induction sound and the overall driving experience is much more involving and more fun.

FEATURES AND BENEFITS

Each Eventuri intake system consists of:

  • Carbon Fiber Airbox with Dual Feeds
  • Bespoke High Flow Dry Cone Filter
  • Carbon Fiber Inlet Tube
  • CNC Machined Temperature Sensor Mount
  • CNC Machined Breather adapter
  • Heat Shield with Gold Reflective Backing
  • Laser Cut Stainless Steel Brackets
  • Silicon Coupler with OEM Specification Clamps
BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d dÄHLer tuning Eventuri

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.

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.

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.

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.

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.

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.

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!

dÄHLer, dAHLer, ATTC, Anti-Theft Throttle Commander, Power Pedal, Pedal Commander, Pedal Box, Pedalbox, App Control, Immobilizer, Alarm, Tuning, BMW, BMW M,

THE 3 – BMW 3 series Touring G21 M340i xDrive G20: Performance Exhaust System

4-pipe stainless steel performance exhaust system

An addition to our exceptional performance upgrades for your BMW 3 series Touring G21 M340i xDrive G20 is the dAHLer performance exhaust system, taking it to the next level.

You’re looking for a high-quality German-made stainless steel performance exhaust system with exhaust flap for your BMW 3 series Touring G21 M340i xDrive G20?

Our dAHLer performance exhaust systems for the BMW 3 series Touring G21 M340i xDrive is handcrafted from high quality 1.4301 stainless steel and are Made in Germany by a team of specialists at an ISO 9001:2015 certified facility.

A dAHLer performance exhaust system for the BMW 3 series Touring G21 M340i xDrive comes with a high-performance muffler(s) and double exhaust flap system with no drone on the highway of a much more aggressive sound then the stock muffler but still be perfectly livable for daily driving.

No check engine lights, no re-programming of your car or anything silly is required after installation. The dAHLer exhaust system for the M340i is compatible with left and right hand drive models as well as cars with and without OPF.

Approved and tested by the German TUV this system comes with a European Homologation according to the latest emission standards.

Not only do we engineer our valve-controlled performance mufflers to sound good we engineer the performance exhaust systems that fit your BMW 3 series Touring G21 M340i xDrive properly for a much easier installation.

Designed to mount using the factory BMW 3 series Touring G21 M340i xDrive exhaust hangers, the dAHLer performance exhaust system is a bolt-on replacement for the OEM version. To help reduce the time you spend installing the dAHLer performance exhaust system on your BMW 3 series Touring G21 M340i xDrive, slip-fit joints are included to make fitment as easy as possible. Our quad or double exhaust tips are designed to fit the stock BMW M diffuser.

The dAHLer performance exhaust system for the BMW 3 series Touring G21 M340i xDrive includes a high-flow, valve controlled, stainless-steel performance muffler, and is available as a cat-back system.

Our performance exhaust system for the BMW 3 series Touring G21 M340i xDrive is here to improve your driving experience with an awesome sound and a noticeable bump in performance.

Under normal driving conditions, our valve-controlled performance muffler stays closed, and the dAHLer performance exhaust system for the BMW 3 series Touring G21 M340i xDrive is quite unassuming and nobody will really even suspect your car even has an aftermarket performance exhaust system or muffler. But, when you open up the throttle, the valve-controlled system opens up the exhaust flaps, and our performance exhaust system gives your BMW 3 series Touring G21 M340i xDrive a menacing growl.

For those who want to be fully in command of the exhaust sound at any time and get the race car like feeling, dAHLer offers an exhaust flap remote-controlled device.

For more details make sure you check out our category Exhaust Flap / Valve Control

BMW 3 series G21 Touring M340i dAHLer exhaust system
BMW 3 series G21 Touring M340i dAHLer exhaust system

THE 3 – BMW 3 series Touring M340i xDrive: Sound Video

4-pipe stainless steel performance exhaust system

dÄHLer IP68 Rated Valve Controller

The new 2025 IP68 rated waterproof dÄHLer Valve Control Modular

dÄHLer IP68 Rated Valve Controller waterproof bmw tuning exhaust sound bmw m daehler switzerland germany

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Exhaust Flap Controller Installation Video

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THE 3 – BMW 3 series Touring G21: Performance Lowering Kit

Performance Lowering Springs are the first step in suspension performance enhancement. A dAHLer lowering kit for the BMW 3 series Touring G21 is a performance spring set created for the serious enthusiast.

A sports spring set with the lowest possible drop for the BMW 3 series G21 Touring M340i, M340d, 330i, 330d, 320i, 320d, 318i, 318d  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 3 series Touring G21 and works perfectly with adaptive dampers and xDrive models..

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 3 series Touring G21.

A dAHLer lowering spring equipped BMW 3 series G21 Touring M340i, M340d, 330i, 330d, 320i, 320d, 318i, 318d 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 3 series Touring G21 cars provides the ultimate balance between high performance, extreme lowering and comfortable ride quality.

BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d 318d 318i lowering kit sports spring set dAHLer
BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d 318d 318i lowering kit sports spring set dAHLer coil over suspension
BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d 318d 318i lowering kit sports spring set dAHLer

THE 3 – BMW 3 series Touring G21: 20” FORGED Wheel Sets

Modern BMW cars like the BMW 3 series Touring G21 typically come with these heavy stock alloy wheels. Even when you have spent lots of money on a better BMW accessory wheel & tire package, those wheels are still not weight optimized and most of the people won’t recognize the difference as they simply think those wheels come from factory anyhow. It needs a real BMW enthusiast to tell the difference.

So, how to make a real difference?

Where others draw a final Line at 19″, dAHLer provides your BMW 3 series Touring G21 the finishing touch with high-quality and ultra-light 20″ FORGED wheels for BMW 3 series Touring G21. All dAHLer FORGED wheels for the BMW 3 series Touring G21 are manufactured at an ISO 9001:2015 certified facility, in Germany according to the latest regulations to fulfill the highest safety standards.

dAHLer has designed a wheel which meets the highest demands with maximum strength and at the same time the lowest weight. The True greatness for the BMW 3 series Touring G21 to develop the maximum performance of your BMW 3 series Touring G21.

So, give your BMW 3 series Sedan something to set apart from the crowd with a 20 inch dAHLer wheel and tire package for your BMW 3 series Touring G21.

FORGED WHEEL ADVANTAGES AT A GLANCE:

  • 30% to 35% weight saving compared to conventional light alloy wheels
  • significantly improved longitudinal and lateral dynamics
  • significantly improved acceleration and deceleration values due to the lower accelerated mass
  • improved and more agile handling/steering behavior
  • high-quality paint (powder coating) for perfect protection of the forged wheel surface
  • with integrated FORGED and dAHLer lettering
Forged wheels BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d 318d 318i
Forged wheels BMW 3 series G21 Touring M340i, M340d 330i 330d 320i 320d 318d 318i
BMW 3 series G21 Touring M340i, M340d, 330i, 330d, 320i, 320d, 318i, 318d dÄHLer tuning

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