dAHLer High-Performance Exhaust System | For F9x M8

dÄHLer Competition Line is a Swiss-based BMW tuning specialist, delivering high-performance upgrades and precision-engineered accessories since 1996. With performance solutions for BMW, BMW M, Plug-in Hybrid, and Mild Hybrid models, dÄHLer transforms every vehicle into a truly ultimate driving machine.
$11,049.00

Product Information

DÄHLER HIGH-PERFORMANCE EXHAUST – GIVING THE BMW'S FLAGSHIP M8 THE NOTE IT TRULY DESERVES


Introducing the dAHLer High-Performance Axle-Back Exhaust System for the BMW F9x M8 Competition models — the ultimate upgrade for drivers who want their flagship M to sound as powerful and exotic as it performs. Designed for enthusiasts demanding a deeper, sharper, and more motorsport-inspired tone, this system transforms the S63 twin-turbo V8 into the sound experience it should have had from factory.

From a refined OE-like note in Comfort mode to an unmistakably aggressive M howl when the valves are full open using the optional exhaust valve control module, the dAHLer system delivers the most intense exhaust character available for the M8 — all while maintaining perfect day-to-day livability.

Precision-engineered in Switzerland and manufactured in Germany, this axle-back system enhances the natural voice of the S63 without drone, without compromising drivability, and without any ECU modifications. Built from high-grade stainless steel and equipped with dual valve-controlled mufflers, it integrates seamlessly with the factory system for an OEM-plus driving experience.

The result is a richer, more emotional, and more responsive M8 — whether you’re cruising quietly or unleashing its full potential. 

While the installation of the dAHLer High-Performance Exhaust System is possible to do on your own, it is highly recommended that you use a professional. Improper installation practices may result in poor performance or even damage to your vehicle, and dAHLer will not be responsible for any such issues. 


KEY FEATURES

  • More aggressive, motorsport-inspired S63 V8 sound — the way the M8 should have sounded from factory.
  • High-flow, valve-controlled stainless-steel performance muffler.
  • Two active exhaust valves for quiet, refined behaviour when closed and a menacing growl when opened.
  • No drone at highway speeds — engineered specifically for high-performance M models.
  • Includes new connecting pipes and a front resonator with pressure equalisation.
  • Seamless factory-valve integration for Comfort/Sport/Sport+.
  • Quad 101mm matte black dAHLer exhaust tips replace the factory finishers for a more aggressive appearance.
  • Uses factory hangers and slip-fit joints for straightforward installation.
  • Built from high-grade 1.4301 stainless steel for longevity and durability.
  • Manufactured in Germany in an ISO 9001:2015 certified facility.
  • Tested extensively on street, track, and the unrestricted Autobahn.
  • Noticeably deeper exhaust tone and improved responsiveness.
  • TUV approved and EPA compliant (USA – all states).
  • Suitable for cars with or without OPF/PPF.
  • No check engine lights – no coding, reprogramming, or ECU modification required.
  • Compatible with all F9x M8 models powered by the S63 engine. 
  • Optional dAHLer Exhaust Valve Control Module.
  • 3-year worldwide warranty.



EXPERIENCE THE SOUND






ADDITIONAL INFORMATION


With dAHLer High-Performance Exhaust System, you won't need to worry about any check engine lights or reprogramming your car. This system works seamlessly with all F9x M8 models models powered by the S63 engine, with or without OPF/PPF. 

For those who want to be in full command of the exhaust sound at any time, dAHLer offers an optional exhaust valve controller module for M8 models, which can be found here.

The product images shown are for demonstration purposes only and may not represent the exact design of the exhaust system.



SAFETY INFORMATION


All dAHLer performance sports exhaust systems for BMW models are thoroughly evaluated on the street, track and unrestricted German Autobahn.

Each of dAHLer performance sports exhaust system are manufactured in Germany at an ISO 9001:2015 certified facility and tested by the German TUV according to the latest regulations to fulfill the highest standards.



VEHICLE MANUFACTURER WARRANTY AND EMISSIONS DISCLAIMER


dAHLer Competition Line makes no guarantees to the lawfulness of any parts used for “on highway vehicles” and accepts no responsibility for compliance with the vehicle’s OEM warranty. 



Models
  • 8 Series / F91 / F92 / F93 M8 (2019+) / M8
  • 8 Series / F91 / F92 / F93 M8 (2019+) / M8 Competition

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Excellent service at reasonable prices. The shop is very nice too, you almost feel like you're at BMW.

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Extremely happy and love this place. Great service from Eric. Bought and installed akrapovic exhaust system from this place. Also purchased and installed the M performance bonnet. 100% coming back for more service from this place.

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Sean arranged a Quaife LSD for my 135i and I couldn't be happier. He advised multiple seals and bearings needed replacing unbeknownst to me so these were done as well. Now I have a more reliable car and one with tonnes more mechanical grip!

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Great blokes down there, Eric is great for those chinese speaking customers looking for either some general quality servicing or even higher end modifications. Good team of humble and honest people, will definitely be back!

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