SKU: 37679963658

MMX Power Control Module BMW M3/M4 Competition (F8X)

Sale price$415.33 Regular price$461.48
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

MMX Power Control Module BMW M3/M4 Competition (F8X)MMX Power Control Module BMW M3 M4 Competition (F8X) +70 HP +110 Nm Stock figures: 450 HP & 550 Nm PCM figures: 520 HP & 660 Nm Welcome to MMR PCM; Power Control Module. A plug and play increase in power for F Series M Cars. Removable and undetectable. Maybe your F Series M Car cant yet be tuned via conventional methods or youre concerned about the warranty. Well, whatever the reason, not everyone is ready to tune their car through traditional

MMX Power Control Module BMW M3/M4 Competition (F8X)

+70 HP +110 Nm

Stock figures: 450 HP & 550 Nm
PCM figures: 520 HP & 660 Nm

Welcome to MMR PCM; Power Control Module. A plug-and-play increase in power for F-Series M-Cars. Removable and undetectable.

Maybe your F-Series M-Car can’t yet be tuned via conventional methods or you’re concerned about the warranty. Well, whatever the reason, not everyone is ready to tune their car through traditional methods; the MMR PCM could be your perfect tuning solution!

What PCM does?

PCM works by using our in-house developed calibration running on our standalone PCB, which communicates in parallel with the factory ECU. This communication route allows the PCM to safely optimise a variety of electronic sensor signals in real time, interfacing between the engine controls and its sensors.

With multiple channels such as charge air pressure, ignition and fueling controlled by the PCM computer, the result is increased power and torque across the whole powerband of the engine.

We have carried tens of thousands of development miles of rigorous testing on our in-house dyno, on road and on track with numerous calibrations, across multiple cars and different hardware installations, allowing us to find the sweet spot for engine performance, drivability and safety.

Everything you need.
With 12 months of detailed development, our PCM is more than a ‘tuning box’. The kit is complete, including a perfect fit wiring loom made especially for the selected vehicle.

Cooled by fins.
The unit itself is housed in a stunning billet aluminium case, finned to ensure adequate cooling plus a beautiful carbon fibre mounting bracket to affix it securely in your engine bay.

PCM vs ECU Calibration

We’re completely honest about this, the PCM calibration is not as sophisticated as a full ECU calibration. To keep the car smooth, safe and reliable, PCM’s power levels have to be kept lower than traditional ECU calibrations. But of course, you’ll love the power boost you get from PCM, combined with the drivability and efficiency gains.

Features

  • Significant increase in power and torque.
  • Simple installation.
  • Removable and undetectable.
  • Constructed from Billet Aluminium.
  • Anodised in signature MMR Gloss black.
  • Engineered and hand-assembled in the UK.
  • Calibrated in-house by MMR.
  • Vehicle-specific loom and bracket.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 37679963658

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4.8 ★★★★★
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B. Pernice
Dallas, US
★★★★★ 5
A little luxury you will love in your bedroom!
Color: White-cooling, Size: With Cover
What a lovely feeling to rest my legs on this cool, comfortable body pillow! It is full enough to be supportive, but soft enough to be lovely against the body. Instant pain relief.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
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Yvonne Pottenger
Bozeman, US
★★★★★ 5
Cool, Comfortable, and Perfect for Side Sleepers!
Color: Blue-cooling, Size: With Cover
This pillow is incredibly comfortable and has made a big difference in my sleep quality. The cover is soft and stays cool throughout the night, which really helps prevent overheating. I also love how supportive it is—it keeps me in a great position when I sleep on my side, so I wake up feeling more rested and without discomfort. It’s the perfect combination of comfort and support, and I would definitely recommend it to anyone looking for a better night’s sleep.
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Reviewed in the United States on April 7, 2026
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SAHMomma
Chelsea, US
★★★★★ 4
Good entry level or decorative pillow
Color: White-velvet, Size: With Cover
Perfect entry level body pillow, or for a guest bed that isn't frequently used. The body pillow needs refluffed every day when used as intended. Long enough to also fill a gap between headboard and mattress on a full sized bed. The cover is soft,has a zipper and washed well. I was able to easily find other low cost pillow case options for it here on Amazon.
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Reviewed in the United States on March 16, 2026
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Kyle
Grantham, US
★★★★★ 5
Comfortable
Color: Green-cooling, Size: With Cover
This is probably one of the best pillows I have ever owned. I haven’t bought a new pillow in almost 10 years. I don’t get a good chance to actually look at pillows, let alone sleep, so this was a very good buy for me. It’s actually cold unlike other cooling pillows I’ve been given, it’s soft, large, and the support it gives for my neck is a lot better than my previous pillow. It’s also flat enough where I don’t have to constantly adjust it so I’m not waking up in the morning having to adjust it from breaking my neck.
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Reviewed in the United States on March 29, 2026
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Rick
Massapequa, US
★★★★★ 5
Great pillow for side-sleepers, to keep things lined up.
Color: Black, Size: With Cover
I didn't actually expect this to be that useful, but it has improved my mornings a lot. Since I sleep on my side, often times I my knees would be uncomfortable when trying to go to sleep, or my neck would be sore getting up. This pillow gives me a bit of padding, and helps keep my hips and shoulders lined up. Simple solution, but works great.
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Reviewed in the United States on May 14, 2026

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