MERCEDES A45S W177 / CLA45S C118 / GLA45S H247 ECU REMAP

Custom Remap for the Mercedes-AMG A45S, CLA45S & GLA45S at MSL Performance

**If your vehicle is registered from mid 2021 onwards then your ECU has a strong chance of being locked from factory, if this is the case then we would need to send the ECU for unlocking prior to any tuning, please refer to the following link: ECU UNLOCKING**

Let's be honest, you already own a phenomenal car. The A45S and its siblings are hyper-hatch royalty right from the factory, an absolute marvel of engineering and a thrill to command. But have you ever planted your foot, felt that savage surge of power, and thought to yourself that deep down, there's just... more? A sharper response, a more ferocious pull, a whole new level of performance waiting to be uncaged? You're absolutely right. There is.

Here at MSL Performance in Birmingham, we are experts in unlocking the hidden potential within AMG's finest. We don't deal in generic, off-the-shelf tunes. We're dedicated to the craft of custom ECU remapping, meticulously tailoring the software to your specific vehicle, its fuel, and any hardware modifications. Think of it as a bespoke suit for your engine – a flawless fit that extracts maximum performance, safely and reliably.

Find Your Perfect Level of Power

Every driver's desires are different. That's why we've engineered a clear upgrade path for your AMG, from a significant enhancement to a truly transformative experience.

Stage 1: The "This is How it Should've Been!" Tune

This is for the owner who loves their car but craves the sharper, more aggressive edge it's truly capable of. With the standard factory hardware, we expertly recalibrate the engine control unit to unleash a staggering new level of performance. Any hint of hesitation is eliminated, replaced by an instantaneous and forceful throttle response. The mid-range acceleration becomes a relentless shove, pinning you to your seat as the revs climb. It’s the car you already admire, but with its ferocious character amplified to the extreme.

• The Result: Up to 470 bhp and up to 580 Nm of torque.
• What you need: Just your car! No additional parts are required.

Stage 2: For When You Demand a Statement

Ready to elevate your AMG to the next echelon of performance? Stage 2 is where we begin to push the boundaries. By liberating the exhaust system with a high-flow downpipe and fitting a performance air filter, we can optimize our custom tune for significantly improved airflow. The result is a car that pulls with unrelenting intensity all the way to the redline, delivering a more savage power delivery. The auditory experience is equally transformed, producing a glorious, unapologetic roar that will be a constant reminder of the power at your command.

• The Result: Up to a mighty 490 bhp.
• What you need: A downpipe (decat or sports cat) and a performance air filter is also recommended to allow the engine to breathe more freely.

So, Why Come to MSL?

Because we share your passion for high-performance vehicles. We view ECU tuning as a fine art, and we pour our expertise and dedication into every car that graces our workshop. When you entrust your AMG to us, you're not just purchasing a remap; you're investing in the complete MSL experience – transparent advice, world-class workmanship, and the absolute confidence that your pride and joy is in the most capable hands.

Ready to feel the true difference? Give us a call or visit our state-of-the-art facility here in Birmingham. We would be delighted to discuss your car and devise the perfect strategy to unleash its ultimate potential.