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Description
Active Autowerke Signature Exhaust System - S55 F8X BMW M3 & M4 - (NLA)Active Autowerke is proud to announce the release of our Signature F8X M3 M4 Exhaust System. This system is the result of countless hours of R&D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, we have created a modular exhaust system that will provide enough flow to support power levels way above the stock S55. The stock S55 midpipe is a dual pipe system from each turbo that leads to the
Active Autowerke is proud to announce the release of our Signature F8X M3/M4 Exhaust System.
This system is the result of countless hours of R&D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, we have created a modular exhaust system that will provide enough flow to support power levels way above the stock S55.
The stock S55 midpipe is a dual pipe system from each turbo that leads to the rear muffler. The resulting sound is far from pleasant, and without any real scavenging effect the turbo lag is fairly pronounced. By converting to a single 3.5" pipe directly after the downpipes, our system promotes exhaust scavenging along with higher exhaust velocity to produce a quicker spool, more power, and a much smoother exhaust note.
We believe that we’ve built the best performing exhaust on the market. With the reduced back pressure and large single-pipe design you can expect exhaust velocity to remain as high as possible throughout the entire system. Our design is also capable of handling much higher power levels than stock. It’s over engineered to have no issues handling the increased exhaust volume from extensive modifications including turbo upgrades. All Active Autowerke exhausts are designed and manufactured for performance, and our S55 exhaust is no different. Instead of copying the OEM exhaust, we started with a blank canvas in order to create a system as close to perfect as possible.
MADE IN THE USA
KEY FEATURES:
- Mandrel bent 304-stainless construction
- Completely TIG Welded (No MIG Welding at all)
- Flow efficient Y-Pipe design
- Perfect fitment with adjustable 90mm double walled tips
- True 3.5” turbo back design
- Uses OEM valve motor
- Designed to be used at stock power levels along with highly modified engines
- No permanent modifications required
- Manufactured in house at our facility in Miami, FL.
***These systems are built to order and require a 2-3 week lead time before shipping.
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
4.6 ★★★★★
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Product Reviews
★★★★★ 5
They work very well.
Number of Items: 2
I love these. I use them to wrap my tumbler before sublimating them in my sublimation oven. They work every well to let me see the process so I don’t scorch my design.
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Reviewed in the United States on October 16, 2025
★★★★★ 5
Sublimation ink
Love this ink! Bright colors. Haven't had to refill my ink yet. No clogging problems. Ink quality is great!! Very easy to install.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Very very good
Very good sublimation inks, the images come out with good colors
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Vibrant, Rich Colors
This is my absolute FAVORITE sublimation ink. For the price, it's the best you'll find the canisters are easy to use, don't leak, and lasting for months.
The bottles fit perfectly onto the eco tank. The colors are vibrant, rich, transferring to piece exactly as it should. These work like a dream and I'm a loyal customer, for sure.
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Reviewed in the United States on December 15, 2025
★★★★★ 5
Very vibrant.
Great quality!!!
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Reviewed in the United States on May 7, 2026