BMW M440i Cabriolet (G23) with tuning parts from dÄhler!

Just in time for the start of the warm season, BMW rolled the convertible version of the current 4-series generation into the showrooms of the car dealerships last March. The spearhead of the Open Air 4 series is - from the brand new M4 Competition M xDrive Convertible Apart from that - the M440i, which is driven by a factory-made 275 kW (374 PS) and 500 Nm delivering 3,0-liter in-line six-cylinder with twin-scroll turbocharging. As is well known, you don't get used to anything as quickly as to engine power. Of course, the performance tuners from know that too DÄHLER Competition Line, based in Belp near Bern in beautiful Switzerland, which is why they added the B58B30TÜ1 to their ingenious performance increase «Powered by DÄHLer» help you get even more steam.

BMW M440i Convertible (G23)

So that already ensures Level 1 upgrade for full 316 kW (430 PS) and a mountain of torque from mighty 610 Nm - And, as usual with DÄHLer Competition Line, of course with WLTP Euro6d test, EU / CH homologation and a reliable supplementary guarantee to the factory guarantee. For contemporaries for whom the level 1 increase in performance is not yet enough, Christoph Dähler and his team also have something “more” in store for them: The Level 2 generates up to 334 kW (455 PS) and 640 Nm and is already in preparation.

• Performance increase level 1 «Powered by DÄHLer»
  316 kW (430 PS), 610 Nm WLTP-E6d-tested and EU / CH homologated and with a corresponding supplementary guarantee to the factory guarantee.
• Performance increase level 2 «Powered by DÄHLer»
  334 kW (455 PS), 640 Nm, including an increase in the standard V / max limit. (In preparation)

Also approved with the extensive approvals and guarantees are - optionally in combination with each other or alone - those specially developed for use on vehicles equipped with gasoline particulate filters Stainless steel exhaust system "built by DÄHLer", which are sporty and powerful from their ceramic-coated 90 millimeter twin tailpipes sounds, as well as a Eventuri suction system.

In addition, DÄHLer Competition Line offers a CAN bus-controlled exhaust flap control: It allows maximum sound at the push of a button - regardless of driving mode, engine speed and speed range.

Aluminum pedal pads "built by DÄHLer"

DÄHLer mat Aluminum pedal pads for BMW with manual, SMG or automatic transmission are a visually appealing and functional addition to the vehicle interior. The COUNTER Aluminum pedal set is a direct replacement for the original rubber pedal pads and fits perfectly with the interior of your BMW 4-series G23 Cabrio. The pronounced rubber profiles on the accelerator, brake or clutch pedals offer a firm hold and protect against slipping.

• Dynamic and sporty look
• Very high quality appearance
• Series parts are completely covered
• Secure hold thanks to pronounced rubber profiles
• Simple construction
• High accuracy of fit
• Made in Germany

Competition coilover kit "built by DÄHLer"

Specifically and carefully tailored to the vehicle Competition coilover kit "built by DÄHLer" (manually adjustable in height and hardness), sporty and firm, but never hard. Or, on request, if only a visual upgrade and lowering is required, a harmonious one Sport spring set "built by DÄHLer", which is explicitly tailored to the "Electronic Damper System EDC".

20-inch forged wheel COVER CDC1 FORGED

The delicacy and the real size for the 4-series G23 convertible: DÄHLer gives your BMW G23 Cabrio the finishing touch - with the stylish, high-quality, exclusive and ultra-light 20-inch forged wheel «DÄHLer CDC1 FORGED». Using state-of-the-art production technology, DÄHLer has designed a wheel that meets the highest demands in terms of driving dynamics and comfort with maximum strength and at the same time the lowest weight. The dimensions: front 9 x 20 inches with 235/35 tires and rear 10 x 20 inches with 275/30 (Michelin Pilot Sport 4s). The wheel is aesthetically optimally integrated into the overall appearance of the G23 Cabrio and, thanks to its optimal size, supports the powerful appearance in a harmonious way.

• 30% to 35% weight savings compared to conventional light alloy wheels
• Significantly improved longitudinal and transverse dynamics
• Significantly improved acceleration and deceleration values ​​due to the lower, accelerated mass
• improved and more agile handling / turning behavior
• high quality paint (powder coating) for perfect protection of the surface of the forged wheel
• large selection of individual surface colors, with integrated FORGED and DÄHLer lettering

Front spoiler lip "built by DÄHLer".

• made of very light, high-quality and flexible PU-RIM
• very high accuracy of fit
• already painted in black gloss
• quick and easy assembly using the original fastening points
• tested and EU / CH homologated
• low shipping costs within Switzerland
• Fits for all BMW 4 series G22 and G23 with M-package

M Look exterior mirror housing "built by DÄHLer".

• made of very light, high-quality material
• very high accuracy of fit
• M look
• Available already painted in black gloss or as real carbon
• quick and easy assembly using the original fastening points
• tested and EU / CH homologated
• low shipping costs within Switzerland
• Fits for all BMW 4 series G22 and G23 with M-package

Interior - also here with the unmistakable «DÄHLer-Touch»

COMING SOON: Competition coilover kit "built by DÄHLer" with DDC plug and play to supplement and further use the electronic damper system EDC, which is often installed ex works.

Don't worry, of course that was far from being the case when it came to auto / auto tuning. Our magazine still has tens of thousands other tuning reports in stock. Do you want to see them all? Then just click HERE and look around. Or are you particularly interested in everything to do with the Tuner Dähler Design & Technik GmbH? Then the following excerpt with other vehicles is definitely the right one.

BMW M440i Cabriolet (G23) with tuning from dÄhler!
Photo credits + text: Dähler Design & Technik GmbH

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