Welcome to dAHLer
Exclusive Tuning Parts
for BMW & BMW M
Select your car in the top menu 
Welcome to
dÄHLer Competition Line
Switzerland | Germany | USA | UK
Exclusive Tuning Parts for BMW & BMW M
We bring 30 Years of Experience
dÄHLer Competition Line Switzerland AG
dÄHLer Competition Line AG, headquartered in Switzerland, has been a leading specialist in high-performance tuning parts and accessories for BMW and BMW M vehicles since 1996. Founded and led by owner and CEO Christoph Dähler, dÄHLer combines decades of engineering expertise with a passion for performance, precision, and distinctive design.
In 2026, dÄHLer proudly celebrates its 30th anniversary.
dÄHLer Competition Line offers an extensive range of performance upgrades and premium tuning products for BMW and BMW M models, including engine performance tuning for vehicles built both before and after June 2020, carbon-fiber front splitters, lowering kits, high-performance sport exhaust systems, alloy and forged wheels up to 23 inches, IP68-rated valve controllers, ATTC Anti-Theft with PowerPedal technology, and exclusive interior components.
Whether you’re looking for increased power, enhanced driving dynamics, a more aggressive sound, or a truly individual appearance, dÄHLer offers carefully engineered solutions to take your BMW or BMW M vehicle to the next level.
dÄHLer Competition Line Germany, USA & UK
dÄHLer Competition Line Germany LLC is the official German branch of dÄHLer Competition Line Switzerland, bringing Swiss engineering, motor-sport expertise, and uncompromising performance to enthusiasts worldwide.
The company is headed by CEO Jorg M. Wey, who brings more than 25 years of experience in the automotive tuning industry. His extensive expertise and passion for high-performance vehicles are the foundation of dÄHLer’s commitment to quality, performance, and customer satisfaction.
dÄHLer Germany ships worldwide! Visit our online shop and request your personalized quote today.
dÄHLer USA is an official branch of dÄHLer Competition Line AG, Switzerland. Its Eastern Regional Headquarters are located in Hammonton, New Jersey.
dÄHLer USA is led by CEO Steven Kiefer and COO Jorg M. Wey, combining extensive industry experience with dÄHLer’s commitment to performance, precision, and innovation.
dÄHLer USA offers free shipping to the lower 48 connected states of the US.
Shipping to states such as Alaska, Hawaii, Puerto Rico, etc. DOES NOT QUALIFY FOR FREE SHIPPING and will require a representative to assist you.
www.daehlerusa.com
dÄHLer UK is an official branch of dÄHLer Competition Line AG, Switzerland. Its regional headquarters are located in Bridge Farm, Barcombe, East Sussex.
dÄHLer UK is led by CEO Ben Koflach and COO Jorg M. Wey, bringing together extensive industry experience and dÄHLer’s commitment to performance, precision, and innovation.
www.daehleruk.com
Gasoline Engine Tuning
Our Engine Performance Tuning Module for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars is a direct plug in to the existing (OEM) engine harness for a factory appearance and fitment and an instant hp and Nm / ft-lbs gains. There are only POSITIVES.
Diesel Engine Tuning
Our Performance Tuning Modules for Diesel Engines revolutionize advanced tuning as it’s not the run-of-the-mill piggy-back style, chip tuning, flash tuning upgrades or other tuners you find for less.
Performance Springs
dÄHLer Performance Lowering Springs are the first step in suspension performance enhancement. A dÄHLer lowering kit for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars is a performance spring set created for the serious enthusiast.
Valve Controller
The dÄHLer Valve Controller X for BMW and BMW M cars was developed in Switzerland and manufactured in Germany and is a must have if you like to control the sound of your car.
ATTC Anti-Theft System with Power Pedal
Give your BMW or BMW M car a new way of anti-theft protection and at the same time a 10% quicker acceleration with the new dÄHLer Anti-Theft Throttle Commander – ATTC.
Forged Wheels
High-class dÄHLer light FORGED wheel and tire packages in 20 inch, 21 inch, 22 inch, or even 23 inches for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars are the perfect match for real enthusiast.
Performance Exhausts
An addition to our exceptional performance upgrades for your BMW | BMW M car, is a dÄHLer performance exhaust system, taking it to the next level.
Get in touch with us
Do you have an order, product or customer service question for us?
Are you interested in a personal quotation?
Are you looking for a dealer or an installer?
Become a dealer!
Take the chance and expand your product range with dAHLer Competition Line high-class performance tuning products for BMW and BMW M cars.
Email
Please use our contact form.
Phone
+49 (0) 6831 – 69 850 80
+49 (0) 6831 – 69 850 81
Our operating hours are
Monday – Thursday
09:00 am – 12:00 pm CET
02:00 pm – 04:00 pm CET
Friday
09:00 am – 12:00 pm CET
Address
We are physically located in Saarlouis, Germany
Find our dealers worldwide
WHERE TO BUYBMW
- BMW 1 series (F40)
- BMW 2 Series (G42)
- BMW 2 series (F44)
- BMW 3 series (G20) Sedan
- BMW 3 series (G21) Touring
- BMW 4 series (G22) Coupe
- BMW 4 series (G23) Convertible
- BMW 5 series (G30) Sedan
- BMW 5 series (G31) Touring
- BMW 7 series (G11)
- BMW 8 series (G14)
- BMW 8 series (G15)
- BMW 8 series (G16)
- BMW Z4 (G29)
- Our Glass Wind Deflectors
- Anti-Theft System
- Valve Controller
BMW M
- BMW M135i (F40)
- BMW M235i (F44)
- BMW M240i (G42)
- BMW M2 (G87) 2023
- BMW M2 CS (F87)
- BMW M3 (G80)
- BMW M3 CS (G80)
- BMW M3 G81 Touring / Wagon
- BMW M3 (F80)
- BMW M4 (G82)
- BMW M4 (G83)
- BMW M5 (G90)
- BMW M5 G99 Touring / Wagon
- BMW M8 (F92)
- BMW X3M (F97)
- BMW X4M (F98)
- BMW X5M (F95) LCI
- BMW X5M (F95)
- BMW X6M (F96) LCI
- BMW X6M (F96)
- BMW XM Label (G09)
- ///MFLIGHT Club
- DUMBO Bimmer New York City
- Anti-Theft System
- Valve Controller