MERCEDES GLC63 / GLC63S ECU REMAP

Custom Remap for the Mercedes-AMG GLC 63 & GLC 63S (X253) at MSL Performance

Let's be honest, you already own the ultimate all-rounder. The GLC 63 is a masterstroke of engineering, blending SUV practicality with the heart of a muscle car – the formidable 4.0-litre Bi-Turbo V8. It’s the perfect one-car solution. But have you ever been behind the wheel, felt that surge of V8 power, and had the feeling that deep down, the engineers had to dial it back? That there's a sharper, more aggressive performance SUV waiting to be unleashed? You're right. There is.

Here at MSL Performance in Birmingham, we are specialists in AMG's Bi-Turbo V8 engines. We don’t do generic, emailed tunes. We believe in a bespoke approach, connecting directly to your GLC to craft a custom map tailored specifically to its engine, fuel, and conditions. It's a perfect fit that unlocks its true potential, safely and reliably.

Find Your Perfect Level of Power

Every GLC 63 owner has a different goal. That's why we've created a clear tuning path to help you achieve the exact level of performance you crave.

Stage 1: The "Ultimate Performance SUV" Tune

This is for the driver who wants to transform their GLC 63 into the undisputed king of performance SUVs, all on stock hardware. We meticulously recalibrate the engine's software to unlock a whole new level of performance. The throttle response becomes immediate, making the GLC feel more agile and athletic, while the mid-range pull becomes a relentless, forceful surge of acceleration. It’s your GLC, but with the aggressive performance to match its muscular looks.

• The Result: Up to the 570 bhp mark with an impressive 70-80 lb-ft of additional torque.
• What you need: Just your car! No extra parts are required.

Stage 2: For When You Want V8 Thunder

Ready to fully awaken the beast within your GLC? Stage 2 is where we unchain the V8's true voice and fury. By installing high-flow downpipes, we remove the main restriction in the exhaust system, allowing the twin turbos to breathe freely. This enables our custom tune to deliver a more ferocious and sustained pull right through the rev range. The power delivery is more intense, and the exhaust note is transformed into the deep, thunderous V8 roar your GLC was always meant to have.

• The Result: Up to the 580-590 bhp mark.
• What you need: Downpipes (decat or sports cat) are essential for this stage.

So, Why Come to MSL?

Because we are just as passionate about your GLC 63 as you are. We believe tuning is an art form, and we take immense pride in every single car that leaves our workshop. When you bring your AMG to us, you're not just getting a remap; you're getting the full MSL experience – honest advice, expert workmanship, and the peace of mind that your pride and joy is in the safest hands in the business.

Ready to feel the difference? Give us a call or drop by our workshop here in Birmingham. We'd love to have a chat about your car and figure out the perfect plan to unleash its true potential.