MERCEDES GLS63 X167 ECU REMAP

Custom Remap for the Mercedes-AMG GLS 63 (X167) at MSL Performance

Let's be honest, you already own the undisputed king of luxury SUVs. The latest GLS 63 is the very definition of a flagship, a seven-seat sanctuary of technology and comfort, powered by the incredible 4.0-litre Bi-Turbo V8. It’s a vehicle that operates in a class of its own. But have you ever been behind the wheel, felt that immense, seamless power, and sensed that deep down, the engineers had to leave some of its ultimate performance potential untapped? A sharper, more commanding presence waiting to be unlocked? You're right. There is.

Here at MSL Performance in Birmingham, we are specialists in AMG's most advanced and powerful modern platforms. We don't deal in generic, off-the-shelf tunes. We are dedicated to the art of custom remapping, connecting directly to your GLS 63 to create a bespoke software solution that is perfectly calibrated to your vehicle, safely unleashing its true capabilities.

Find Your Perfect Level of Power

Every GLS 63 owner has a different vision. That's why we've engineered a clear tuning path to help you achieve the exact level of performance you demand.

Stage 1: The "First-Class Supercar" Tune

This is for the driver who wants to elevate their GLS 63's performance to a level that can challenge genuine supercars, all on stock hardware. We meticulously recalibrate the engine's complex software to unlock a staggering new level of performance. The throttle response becomes immediate, making this grand SUV feel impossibly agile. The mid-range pull is transformed into an overwhelming, relentless surge of acceleration that will leave you breathless.

• The Result: Up to the 690 bhp mark and an impressive 70 lb-ft of additional torque.
• What you need: Just your car! No extra parts are required.

Stage 2: For When You Demand Ultimate Authority

Ready to fully unchain the beast within your GLS 63? Stage 2 is where we unlock the V8's true voice and ultimate fury. By installing high-flow downpipes, we remove the primary restriction in the exhaust system, allowing the twin turbos to breathe freely and spool with greater urgency. This enables our custom tune to deliver the most ferocious and sustained pull possible. The power delivery is more intense, and the exhaust note is significantly enhanced, transforming into the deep, authoritative V8 roar that your flagship deserves.

• The Result: Up to the 710 bhp mark.
• What you need: Downpipes are essential for this stage.

So, Why Come to MSL?

Because we are just as passionate about your GLS 63 as you are. We believe tuning these complex modern vehicles is an art form, and we take immense pride in every 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 technological marvel 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 ultimate potential.