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HomeShopStage1 Tuning2020 – 2024 Mercedes-Benz GLB 35 AMG 2.0 T Stage1 Tuning Service | 405 HP & 419 FT/LBS

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-BenzGLB 35 AMG2020 - 20242.0 T

Customer reviews

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4 reviews for 2020 – 2024 Mercedes-Benz GLB 35 AMG 2.0 T Stage1 Tuning Service | 405 HP & 419 FT/LBS

  1. Mason Keller

    I recently got the Stage1 tuning service for my 2021 Mercedes-Benz GLB 35 AMG, and I couldn’t be happier with the results. The increase to 405 HP and 419 FT/LBS really transformed the driving experience—it’s smoother and noticeably more powerful. The best part was how easy the whole process was; they handled the ECU programming professionally, and the setup was practically plug-and-play. They also kept me in the loop throughout the whole process, answering my questions promptly which eased any concerns I had. Delivery was quick and the shipping costs were very reasonable, making this upgrade feel like a no-brainer for any GLB 35 AMG owner.

  2. Daniel Howard

    I’m really impressed with the Stage1 tuning service for my 2021 Mercedes-Benz GLB 35 AMG. The increase to 405 HP and 419 FT/LBS is noticeable, providing a much more thrilling drive. The team was incredibly communicative, answering all my questions promptly and keeping me updated throughout the process. Shipping was quick and reasonable, so I had everything back on my car without any hassle.

  3. John Parker

    I recently had the Stage1 tuning service applied to my 2021 Mercedes-Benz GLB 35 AMG, and the difference is night and day. The car now feels much more responsive with that boost to 405 HP and 419 ft/lbs of torque. What impressed me most was the professional programming service—they handled the ECU tuning seamlessly, and the setup was completely plug-and-play. The team kept me updated throughout the whole process, which made me feel confident about the upgrade. Shipping was quick and affordable, and the overall experience was smooth from start to finish. Highly recommend this service if you want to get the most out of your GLB AMG.

  4. Lucas Cooper

    The tuning service was spot on with quick turnaround and excellent communication throughout the process. Shipping was fast and hassle-free, highly recommend!

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