SKU: 51468019680

R44 BMW F80 M3, F82 M4 & F87 M2 Competition S55 Exhaust Catless Downpipes

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Description

R44 BMW F80 M3, F82 M4 & F87 M2 Competition S55 Exhaust Catless DownpipesThe R44 BMW F80 M3, F82 M4 & F87 M2 Competition S55 Exhaust Catless Downpipes are engineered to unlock the full sound and performance potential of BMWs S55 twin turbo engine. Manufactured from high quality stainless steel, this new design stepped 3. 5"3. 0" configuration replaces the highly restrictive OEM catalytic converters, dramatically reducing exhaust back pressure. The result is faster turbo spool, sharper throttle response and a far more

The R44 BMW F80 M3, F82 M4 & F87 M2 Competition S55 Exhaust Catless Downpipes are engineered to unlock the full sound and performance potential of BMW’s S55 twin-turbo engine. Manufactured from high-quality stainless steel, this new-design stepped 3.5"–3.0" configuration replaces the highly restrictive OEM catalytic converters, dramatically reducing exhaust back pressure. The result is faster turbo spool, sharper throttle response and a far more aggressive exhaust note, all delivered with precise fitment, proven durability and a sensible price point.

Key Features

  • High-grade stainless steel construction

  • Catless / decat design for maximum exhaust flow

  • New-design stepped 3.5"–3.0" pipe diameter

  • Significant reduction in exhaust back pressure

  • Faster turbo spool and reduced turbo lag

  • Sharper throttle response

  • Substantial increase in exhaust volume and presence

  • Raises the tuning potential of the S55 engine

  • Supplied with a 1 year R44 Performance warranty and fitment guarantee

  • Engineered for accurate fitment on S55-powered M models

Important Disclaimer – Motorsport-Use Only

These downpipes are strictly for motorsport-use only. Removal of the OEM catalytic converters breaches European and international emissions regulations and may exceed permitted noise limits in certain countries. Vehicles fitted with these downpipes will fail a UK MOT test.

Fitting catless downpipes will trigger an engine management light and may place the vehicle into limp mode. Custom coding or aftermarket tuning is required to operate these downpipes correctly. R44 strongly advises use limited to closed-course environments such as track or drag strip applications only.

Compatibility

  • BMW F80 M3 (2014–2019)

  • BMW F82 M4 (2014–2021)

  • BMW F87 M2 Competition (2018–2021)

  • Engine: S55 3.0-litre twin-turbo inline-six

Shipping Notes
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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
SKU: 51468019680

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4.3 ★★★★★
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Bernadette Smith
Carnegie, US
★★★★★ 5
Excellent Rivals to Lovers!!
Format: Kindle
The tension and banter between Huntyr and Wold was delectable. I absolutely love the fallen angel and all of his flaws. Huntyr is amazing too being a badass FMC with some major trauma. The world building was great and I enjoyed the training aspect of the story. The writing was immersive and was in the story the whole time. The ending had quite a twist that I hadn’t anticipated and made my jaw DROP. Excellent job! I also loved the narration. Laura is one of my fave narrators!
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Reviewed in the United States on August 15, 2025
E
Verified Purchase
❈ Elizabeth ❈ | Breakawayreads
Lowell, US
★★★★★ 5
Fallen Angels, fae, vampires, oh my!
Format: Kindle
Rating: 4.5 | Spice: 2 (but a good slow-burn) • Main Characters: Huntyr and Wolf • I couldn’t wait to read this book; there was so much hype about it! And there was no doubt why. I fell in love with the characters and the plot itself. This book is mainly plot driven more than friction driven but it’s easy to follow along with. The characters are fun, easily understood. The main setting is at an academy where both the main characters are going through trials and building strength for the final test, The Transcendent. There are fantastic side characters as well. I loved the camaraderie between Huntyr and her friends. But we don’t like Lanson. 😆 We do have some plot twists that come into play throughout the book. Secrets and betrayal to be seen. I did adore Wolf and Huntyr’s relationship. It was a classic slow burn trope. They didn’t hit it off fast, but in time their feelings grew. I loved their banter, so sexy. Wolf is your next book boyfriend; Huntyr is your next vampire assassin independent bad-a*s female. Themes include loyalty, trust, self-discovery, a true slow burn romance. Side note: book ends on a angsty cliffhanger! • Emily, thank you for writing this awesome novel and I cannot wait to devour Book 2, Blood So Brutal! 😍 • Happy reading, my lovelies! xo
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Reviewed in the United States on January 21, 2024
M
Verified Purchase
MelsABookworm
Fort Morgan, US
★★★★★ 4
“My heart bows to you and you only, Huntress.”
Format: Kindle
3.5 🌟 This book popped up in my KU recommended reading suggestions and the synopsis sounded like what I was in the mood for. I'm so glad I took a chance on it. I went into this knowing absolutely nothing about it and ended up really liking it. I love when this happens. The main characters are likeable and I easily found myself rooting for them. There is a mystery element to each of their backstories that I enjoyed watching unfold and can't wait to get more of. Wolf, in particular, has me fixated. Love him. I found this to be an entertaining, addictive read with a plot that moves along at a good pace. It reads so easily I found myself very reluctant to put it down. Lots of twists and turns and the angst is there. A good set up for the next book to come, for sure. My issues with this book....the dialogue feels a bit juvenile at times and there is a repetitive over use of a particular word phrasing that I found myself giving the ole eye-roll to. There are, without a doubt, some pretty cliche moments that gave me a bit of the cringe. I think this could've certainly 100% benefited from more depth regarding the world building. Perhaps the world building was sacrificed to keep the pacing quick? Just a guess. Also, the lack of consistency of character for the FMC was really evident and so she feels quite illogical at times. Overall, this was a fun and enjoyable read that hit the spot well enough for me. That ending certainly has me impatiently pining for book 2!
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Reviewed in the United States on June 18, 2024
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 3
Interesting take on the genre
Format: Kindle
True rating: 3.25 ⭐️ I enjoyed the fresh take on the genre. The best way I could describe the setting and world is an apocalyptic dystopian version of Farie where vampires, fae, and angles struggle to survive in what is left of the world. It was definitely interesting throwing the academy/hunger games aspect into this world as well. Even though I guessed the final reveal early on in the book, I kept hoping I was wrong, and it would take a surprising turn. While the "plot twists" were a bit predictable to me, I still enjoyed the ride this book took me on. Another downfall for me was the plot holes in the world building... I.E. if society has fallen and the world is in the aftermath of war, how are there trains running around the world? Just to take young adults to the trials to get into the golden city? How is the train maintained, the tracks clear, etc? However, I did enjoy the FMC & MMC and thought they were fleshed out nicely. I also enjoyed the side characters but wish some were developed more like Ashalin (sp?). I do find myself rooting for the MCs to succeed and find happiness together, which is obviously an important aspect for romantasy. Overall, was this an earth-shattering, mind-bending, terrific piece of literature? No. But was it the worst thing I've read this year? Also, no. This book has, to me, the bones of a great read & just needs a bit more to push it from an alright book to a great book. Overall ratings: Plot- 3.5⭐️ World building 3⭐️ Spice 2.5 🌶🌶 Main characters 4 ⭐️ Supporting characters 3.5⭐️
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Reviewed in the United States on May 12, 2024
I
Verified Purchase
Irene zamora
Dallas, US
★★★★★ 5
great book
Format: Kindle
I am really excited to meet the author at the book retreat this month. I really enjoyed this world that she built and most of the female main character Huntress is so awesome. She goes through a lot in this book and the ending; wow! I wouldn't have even guessed. I highly recommend everyone to read this book. I have been so lucky this year that almost all the books I have read have been, so far, 5 out 5 stars.
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Reviewed in the United States on June 2, 2026

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