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Description
BMW E46 M3 Exhaust SECTION 1 with Active AFlow extra high flow catalystsActive Autowerke BMW E46 M3 Exhaust SECTION 1 with Active AFlow ultra high flow catalysts NO PERFORMANCE TUNE NEEDED. Combine the Active Autowerke Exhaust SECTION 1 with a pair of Active AFlow catalysts and you have part of a winning combination for your BMW E46 M3. Design and Concept: Why create an exhaust SECTION 1 when the USA version BMW factory SECTION 1 already comes from the factory as a straight through design with two separate pipes and
Active Autowerke BMW E46 M3 Exhaust SECTION 1 with Active AFlow ultra high flow catalysts
NO PERFORMANCE TUNE NEEDED.
Combine the Active Autowerke Exhaust SECTION 1 with a pair of Active AFlow catalysts and you have part of a winning combination for your BMW E46 M3.
Design and Concept:
Why create an exhaust SECTION 1 when the USA version BMW factory SECTION 1 already comes from the factory as a straight through design with two separate pipes and resonators already built in on one side?
If a performance aftermarket headers was installed, how much better could one gain against the already BMW factory SECTION 1?
Solution:
The Active Autowerke Exhaust SECTION 1 only comes into play if the E46 M3 already has a performance header already installed. One will experience a high smell of unburnt fuel. (due to the open exhaust w/o any catalysts) and development of a RASPY like sound of which the BMW S54 engine is notorious for with the BMW Stock Section 1 when equipped. This raspy like sound is a matter of engine sound harmonics at a specific RPM range, a sort of resonance that is very loud and noticeable when the engine is revving at or above 4,000 rpm.
This is the BMW section 1 - where the RASP like noise emits from.
With the Active Autowerke Exhaust SECTION 1 installed, the BMW performance gains are about the same as running the factory section 1. However, that's impressive considering the exhaust flow is also being filtered while running through a pair of Active AFlow catalysts which are EPA registered. The power and performance is still there. We utilize the same method as the European models and provide a set of cables to allow the post cat O2 sensors to be placed in the section 1 after the Cats - this results in no CEL due to Cat efficiency.
Gone is the smell of unburnt fuel. A BIG advantage.
Gone is the RASP like sound. Another BIG advantage.
FEATURES:
- Designed and recommended for Off Road Use
- Uses EPA registered Active AFlow metallic exhaust catalysts for emission control
- No unburnt fuel like smell
- NO RASP like sound
- NO CEL due to Cat efficiency
- Includes O2 sensor extension cables for post Cat sensors
- Brushed Finish for that industrial appeal
- Constructed from 100% 304 stainless steel
- Utilizes factory mounting points for easy bolt-on install
- Two year warranty with Free Tech support
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy