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  See more parts for BMW M3
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Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B
Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 7 Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 2 Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 3 Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 4 Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 5 Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 6 Active Autowerke Maad Maxx Exhaust System with Valves for BMW M3 | M4 2014+ - 11-073B - Image 7

Active Autowerke 11-073B Exhaust System for BMW M3 and M4

The Active Autowerke 11-073B exhaust system is engineered specifically for the 2014+ BMW M4 and M3 models, focusing on enhancing sound and performance without compromising on quality. This system is designed to replace the factory exhaust, addressing the limitations of the OEM setup while delivering a more aggressive tone that resonates with the character of an M car.

Construction and Design

Crafted in the USA, the 11-073B features high-quality materials and meticulous engineering. Key aspects include:

  • Constructed from durable stainless steel for longevity and resistance to corrosion.
  • Double-canned muffler design minimizes unwanted resonance and enhances sound quality.
  • Flex joints incorporated to reduce vibration and improve fitment.

Performance Gains

This exhaust system is not just about sound; it delivers tangible performance benefits:

  • Increases horsepower by 18+ WHP over stock.
  • Boosts torque by 30+ LB-FT compared to the factory exhaust.
  • Facilitates quicker turbo spool for improved throttle response.

Sound Quality

The 11-073B produces a low, deep rumble that enhances the driving experience. The valved design allows for adjustable sound levels, providing flexibility for different driving situations. This system ensures that your BMW M3 or M4 sounds as formidable as it performs.

Installation Details

Installation is straightforward, with all necessary hardware included. Each exhaust is test-fitted on Active Autowerke's F8X Exhaust Fixture to guarantee proper fitment for:

  • BMW M3 (F80) 2015-2019
  • BMW M4 (F82) 2015-2019

Upgrade your BMW M3 or M4 with the Active Autowerke 11-073B exhaust system and experience the perfect blend of performance and sound tailored for your driving pleasure.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2015-2019
 BMW M3
2015-2019
 BMW M4
Many rave reviews and magazine articles have been written about Active Autowerkes, and these kits and their many successors since have become well known for their durability, clever bolt-on engineering, affordable pricing – and their ability to breathe fire into the everyday BMW and its owner. No longer a brand known just around Florida, today's Active Autowerke is known worldwide for its line of flawlessly engineered and manufactured performance parts for the entire Beemer.

As new models and challenges continue to be born, Active Autowerke continues to invent – and deliver – world class, new ideas and innovations that make them run better.

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