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HomeShopStage1 Tuning2018 – 2023 BMW M5 4.4 V8 Stage1 Tuning Service | 795 HP / 790 TQ

Description

Stage 1 ECU/ECM Tuning Service – FixECM

Unlock Power • Improve Response • Enhance Driving Experience

What Is Stage 1 Tuning?

Stage 1 tuning is a software-only ECU/ECM remap designed to safely increase your engine’s power and torque without requiring any mechanical upgrades.
This upgrade focuses on optimizing factory parameters such as:

          Boost pressure

          Ignition timing

          Fuel delivery

          Throttle response

          Torque limits

          Air/fuel ratios

          Speed limiter & rev limiter adjustments

Manufacturers leave a large amount of “hidden power” inside the ECU for reliability margins, emissions limits, and global market conditions.
Stage 1 tuning safely unlocks this potential.


What Is an ECU/ECM Remap?

An ECU (Engine Control Unit) or ECM (Engine Control Module) remap means rewriting and optimizing the original calibration file inside your vehicle’s computer.

FixECM modifies the OEM software to:

✔ Increase horsepower & torque
✔ Improve throttle response
✔ Remove factory restrictions
✔ Optimize fuel and timing maps
✔ Enable smoother, stronger acceleration
✔ Reduce turbo lag
✔ Improve fuel economy under normal driving

This is not a cheap “OBD-flash tool tune.”
FixECM performs full read → remap → checksum correction → bench test for maximum reliability.


How Much Power Will Stage 1 Add?

Power gains vary by engine, but typical Stage 1 increases:

          Turbocharged Gas Engines:
          ✔ +35–70 HP
          ✔ +50–120 TQ

          Turbocharged Diesel Engines:
           ✔ +40–90 HP
          ✔ +70–160 TQ

          Naturally Aspirated Engines:
          ✔ +8–20 HP
          ✔ +10–25 TQ

Every tune is custom built for your specific ECU, not a universal file.


Local GTA/Toronto Customers

You can visit our shop directly for same-day tuning.
We remove the ECU (if required), remap it, test it, and reinstall—usually within same-day.

Canada & USA Mail-In Service

Not in Toronto? No problem.

        Mail your ECU/ECM to us

        We perform the Stage 1 remap

        Bench-test all functions

        Ship it back the same day

Fast turnaround • High reliability • Plug-and-play guaranteed.


Why Choose FixECM?

✔ Professional ECU bench tuning (not basic OBD flash)
✔ Real dyno-tested Stage 1 calibrations
✔ Safe, reliable, OEM-level quality
✔ No mechanical upgrades required
✔ Better drivability + stronger performance
✔ Local shop in Toronto + fast mail-in service
✔ 1-Year Warranty on all programmed ECUs

>>Need a replacement ECU/ECM? Check our replacement units available!<<

>>Check Our Stage1 Tuning Service!!!<<

Compatible vehicles

MakeModelYearEngine
BMWM52018 - 20234.4 V8

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4 reviews for 2018 – 2023 BMW M5 4.4 V8 Stage1 Tuning Service | 795 HP / 790 TQ

  1. Brian Reynolds

    I recently purchased the Stage1 Tuning Service for my 2019 BMW M5, and the results have been phenomenal. The car now delivers a solid 795 HP and 790 TQ, transforming my daily drive into an exhilarating experience. The team provided a professional ECU tuning service that was seamless and plug-and-play, making installation straightforward. Shipping was also impressively quick and affordable, which was a nice bonus.

  2. Dean Young

    The Stage1 tuning completely transformed my M5’s performance, and their quick responses made the whole process smooth. Plus, the free shipping was a nice bonus!

  3. Allan Morgan

    I recently got the Stage1 tuning service for my 2019 BMW M5 4.4 V8, and the difference is incredible. The power gains are noticeable every time I hit the throttle, with the car feeling more responsive and aggressive. What impressed me the most was their professional programming service—they handled the ECU updates seamlessly, so I didn’t have to worry about any complicated installs. Shipping was free and arrived right on schedule, which was a nice bonus. Throughout the process, their team kept me informed at every step, answering my questions promptly and making the whole experience really smooth.

  4. John Douglas

    I’ve been searching for a reliable tuning service for my 2019 BMW M5, and this Stage1 tune absolutely exceeded my expectations. The boost in power to 795 HP is noticeable the moment you hit the throttle, and the car feels sharper and more responsive overall. What really impressed me was the communication throughout the process—they kept me updated every step of the way and answered all my questions promptly. Shipping was free and arrived quicker than I thought, making the whole experience hassle-free. If you want a professional tune with great support, this is the place to go.

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