MERCEDES C63 / C63S W205 ECU REMAP

Custom Remap for the Mercedes-AMG C63 & C63S (W205) at MSL Performance

Let's be honest, you already own an absolute weapon. The W205 C63, with its formidable 4.0-litre BiTurbo V8, is a masterclass in modern muscle, blending luxury with brutal performance. But have you ever planted your foot, felt that wave of turbocharged torque, and sensed that deep down, AMG’s engineers were forced to leave some performance on the table? A little more boost, a more savage response, a whole new level of supercar-rivalling speed waiting to be unleashed? You're right. There is.

Here at MSL Performance in Birmingham, we are specialists in AMG's BiTurbo V8 engines. We don’t do generic, emailed tunes. We believe in a bespoke approach, connecting directly to your car and crafting a custom map tailored specifically to its engine, fuel, and conditions. It's the digital equivalent of a bespoke suit for your engine – a perfect fit that unlocks its true potential, safely and reliably.

Find Your Perfect Level of Power

Every C63 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, from a dramatic uplift to an all-out assault on the senses.

Stage 1: The "Supercar Slayer" Tune

This is for the driver who wants to transform their C63 into a true powerhouse, capable of embarrassing exotic machinery. Working with the standard hardware, we meticulously recalibrate the engine and gearbox software to unleash a monstrous new level of performance. The infamous AMG turbo lag is drastically reduced, and the mid-range pull becomes a relentless, horizon-chasing surge of acceleration. It’s the C63 you love, with its aggression and power turned up to the absolute maximum.

• The Result: Up to the 600 bhp mark and 100 lb-ft of additional torque.
• What you need: Just your car! No extra parts are required.

Stage 2: For When You Want to Unleash the Beast

Ready to take your C63 to the pinnacle of its performance and sound? Stage 2 is where we unchain the V8's true voice and fury. By installing high-flow downpipes, we remove the biggest restriction in the exhaust system, allowing the twin turbos to breathe freely. This enables us to get far more aggressive with our custom tune, resulting in a phenomenal increase in power and a much more enhanced exhaust note. The car pulls with violent intensity, accompanied by a glorious, unapologetic V8 roar that will make every tunnel a playground.

• The Result: Up to a mighty 630 bhp.
• 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 C63 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.