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HomeShopStage1 Tuning2012 – 2017 Mercedes-Benz G550 4.0 V8 Turbo Stage1 Tuning Service | 510 HP / 610 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
Mercedes-BenzG5502012 - 20174.0 V8 Turbo

Customer reviews

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4 reviews for 2012 – 2017 Mercedes-Benz G550 4.0 V8 Turbo Stage1 Tuning Service | 510 HP / 610 TQ

  1. Tyler Rivera

    I recently had the Stage1 tuning service done on my 2015 Mercedes-Benz G550, and the difference is incredible. The boost in horsepower and torque gave the truck a completely new personality—smooth but incredibly powerful. What impressed me most was how professional the whole process was; the team handled the ECU programming seamlessly, and the plug-and-play setup made installation effortless. Shipping was surprisingly fast and free, which was a nice bonus. Throughout, they kept me informed every step of the way, which made the experience stress-free and enjoyable.

  2. Trevor Foster

    I decided to go with the Stage1 tuning service for my 2015 G550, and I couldn’t be happier with the results. The increase in horsepower and torque is noticeable right away, making the driving experience much more thrilling without sacrificing reliability. The team was great at keeping me informed throughout the entire process and answered all my questions promptly. I also appreciated that the shipping was super reasonable, so upgrading my truck didn’t break the bank. Overall, a fantastic upgrade that transformed my ride exactly how I hoped.

  3. Mark Foster

    The tuning service transformed my G550—power feels incredible and they kept me in the loop the entire time. Shipping was fast and super reasonable too.

  4. Jose Wallace

    I’m really impressed with the tuning service for my 2015 G550. The 510 HP and 610 TQ gains are noticeable, and the throttle response is much sharper now. The team provided professional ECU programming, making the installation virtually plug-and-play, which saved me a lot of hassle. Shipping was also quick and affordable, which was a great bonus.

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