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If you've already got the Active Autowerke Signature Series x-pipe on your BMW E9x M3, you know what a game changer it is for performance. But let's be real—it's kind of a pain that it’s really only track-ready since it replaces those factory exhaust catalysts. That’s where the Active Autowerke Stubbies come into play. They’re like the Swiss Army knife of exhaust solutions, letting you keep your factory catalysts while still getting that sweet performance boost.
So, why bother with the Stubbies? Well, for starters, they make your existing BMW catalysts usable on the street. No more worrying about getting pulled over or failing emissions tests. You can actually stay OBD11 compliant without having to shell out for a whole new set of catalysts. Just slap these bad boys on, and you’re good to go.
One of the coolest features is how easy it is to swap out the front section of the Active Signature x-pipe. Thanks to the V-Band clamps, you can just remove the front section and pop in your modified BMW primary catalysts outfitted with the Stubbies. And when I say modified, I mean a simple cut with a sawzall and a bit of welding—nothing too crazy if you know someone who can handle it. You’ll end up with a compact version of your factory catalyst that still packs a punch.
What’s really impressive is that you can switch between setups for street and track without breaking a sweat. Since there are no gaskets to replace, you can do multiple re-installs without any hassle. It’s all about keeping things flexible and functional.
Features:
- Meets OBD11 readiness compliance
- Cost-effective at just $295.00 for the set (sold as a pair)
- Compact design for easier installation
- Multiple re-installs without the need for additional gaskets
- Modular design for both track and street applications
These Stubbies fit perfectly with the BMW M3 from 2008 to 2011, so if you’re looking to unleash the full potential of your ride while keeping it street-legal, the Active Autowerke Stubbies are definitely worth considering.
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2008-2011 BMW M3 |
M3 | 2008-2011 |
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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