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Active Autowerke N55 Downpipe (Part 11-040A)
The Active Autowerke N55 Downpipe, designated as part number 11-040A, is engineered specifically for BMW F-Chassis models equipped with the N55 engine, including the M235i, 335i, 435i, and M2. This downpipe addresses the inherent restrictions of the OEM unit, enabling an enhanced exhaust flow that translates to improved turbo response and overall performance.
Technical Specifications
- Material: Constructed from durable 304 stainless steel for longevity and resistance to corrosion.
- Piping Diameter: Features a 3.5-inch diameter piping that optimizes exhaust flow.
- Catalytic Converter: Includes a 4.5-inch GESI high-flow catalytic converter, designed to maintain emissions compliance without triggering a Check Engine Light (CEL).
- Temperature Resistance: Capable of withstanding exhaust temperatures up to 1500°F.
- Power Rating: Rated for engines producing between 500 to 850 horsepower, making it suitable for high-performance applications.
Performance Benefits
By replacing the factory downpipe, the Active Autowerke N55 Downpipe significantly reduces back pressure, allowing for quicker turbo spool and improved throttle response. The GESI UHO-Series catalytic converter not only enhances exhaust flow but also incorporates advanced precious metal loading technology, which minimizes harmful emissions and enhances overall engine efficiency.
Installation Notes
This downpipe is designed for a straightforward installation process, requiring no cutting or welding. It bolts directly to the factory exhaust system, ensuring a precise fitment for hassle-free setup.
Warranty Information
The Active Autowerke N55 Downpipe is backed by a 5-Year / 50,000-Mile warranty on the shell and tube ends, and a 2-Year / 25,000-Mile warranty on the catalytic core, providing peace of mind for performance enthusiasts.
Fitment
- BMW 335i (2012-2018)
- BMW 435i (2013-2017)
- BMW M2 (2015-2018)
- BMW M235i (2014-2016)
Important Note
This catalytic converter is not legal for use in California due to state emissions regulations. Ensure compliance with local laws before installation.
Other Part Numbers:
Active Autowerkes #11-040
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| BMW 335i | 2012-2015 | Luxury |
| BMW 335i | 2012-2015 | Modern |
| BMW 335i | 2012-2015 | M Sport |
| BMW 335i | 2012-2013 | Exclusive |
| BMW 335i | 2012-2015 | Sport |
| BMW 335i | 2012-2015 | Base |
| BMW 335i GT xDrive | 2014-2016 | Base |
| BMW 335i xDrive | 2012-2015 | Base |
| BMW 435i | 2014-2016 | M Sport |
| BMW 435i | 2014-2016 | Base |
| BMW 435i Gran Coupe | 2015-2016 | M Sport |
| BMW 435i Gran Coupe | 2015-2016 | Base |
| BMW 435i xDrive | 2014-2016 | Base |
| BMW 435i xDrive Gran Coupe | 2015-2016 | Base |
| BMW M2 | 2016-2018 | Base |
| BMW M2 | 2017 | Coupe |
| BMW M235i | 2014-2016 | Base |
| BMW M235i | 2016 | M Sport |
| BMW M235i xDrive | 2015-2016 | Base |
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.
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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