Mercedes-AMG E53 / CLS53 / GLE53 & All Other 53 Models – Remapping & Tuning
Unlock the Full Potential of Your AMG with Onyx Performance
Enhance the power, torque, and responsiveness of your Mercedes-AMG 53-Series models, including the E53, CLS53, GLE53, GLC53, GT53, and more. Based in Slough, Berkshire, Onyx Performance offers bespoke ECU remapping, gearbox tuning, and performance upgrades to deliver exhilarating performance and improved drivability while maintaining reliability.
Mercedes-AMG 53-Series Stage 1 & Stage 2 – Power Gains
Stage 1 – Power Gains
- Stock Power: 435HP / 520Nm
- Stage 1 Remap: 500HP / 650Nm
- Hardware Required: None
Our Stage 1 tuning delivers significant power gains with no hardware modifications needed. Optimised ECU calibration improves throttle response, boost control, and fuel delivery, ensuring an engaging driving experience.
💡 Spark Plug Upgrade: Recommended to enhance ignition reliability and performance under increased power loads.
Stage 2 – Power Gains
- Stage 2 Remap: 550HP / 750Nm
- Hardware Required:
🔧 Decat Downpipe or High-Flow Sports Catalyst
🔧 Cat-Back Exhaust System (Optional but highly recommended)
🔧 Upgraded Air Intake System
🔧 Performance Fuel Injectors (Improves fueling at Stage 2)
🔧 Spark Plug Upgrade (Essential for reliability at higher power levels)
Stage 2 tuning incorporates hardware upgrades for increased airflow, turbo efficiency, and fuel delivery, achieving stronger power delivery and sharper throttle response.
Looking for Even More Power?
For performance enthusiasts seeking maximum output, we offer Stage 3 tuning, featuring:
- Hybrid turbo upgrades for enhanced boost and airflow.
- High-pressure fuel pumps for increased fueling capacity.
- Methanol injection kits to reduce intake temperatures and boost performance.
📞 Call us now on 01753 439321 to discuss Stage 3 tuning options for your AMG!
Why Choose Onyx Performance for AMG Tuning?
✔ Rolling Road (Dyno) Testing – Accurate power measurements.
✔ Data Logging & Diagnostics – Ensures optimal engine performance.
✔ Before & After Performance Printouts – See measurable results.
✔ Engine Smoke Tests – Detect boost or vacuum leaks.
✔ Custom ECU Calibration – Tailored to your AMG model.
✔ Optional Features: Overrun Crackles, Speed Limiter Removal, and Catalyst Fault Code Deletes.
Exhaust Upgrades for Mercedes-AMG 53-Series
🔧 Decat Downpipes – Maximises exhaust flow and power delivery.
🔧 High-Flow Sports Catalysts – Reduces backpressure while staying emissions-friendly.
🔧 Cat-Back Exhaust Systems – Improves sound and efficiency.
🔧 Resonator Deletes – Adds a deeper, sportier exhaust note.
🔧 GPF Delete (For later models) – Unlocks sound and performance potential.
📞 Pair Stage 2 tuning with a performance exhaust system for maximum gains – Call 01753 439321!
Servicing & Maintenance for Mercedes-AMG 53-Series
Keep Your AMG in Top Condition with Onyx Performance
🔧 Routine Servicing – Oil changes, filter replacements, and essential inspections.
🔧 Brake Repairs & Upgrades – OEM and performance brake kits available.
🔧 Suspension Maintenance – Enhancing handling and ride quality.
🔧 Diagnostics & Fault Repairs – Preventative maintenance for peace of mind.
📞 Book your AMG service today: 01753 439321
Styling, Performance Upgrades & Vehicle Security
Styling and Performance Upgrades
🎨 Aero Kits & Carbon Fibre Components – Aggressive styling and improved aerodynamics.
🎨 Lowering Springs & Coilovers – Better stance and handling.
🎨 Big Brake Kits – Superior stopping power for high-performance driving.
Vehicle Security Solutions
🔒 Autowatch Ghost Immobilisers – Prevents key cloning and theft.
🔒 MetaTrak Trackers – Real-time GPS tracking.
🔒 Scorpion Track Systems – Motion alerts and driver recognition.
🔒 Fleet Tracking Solutions – Ideal for monitoring multiple vehicles.
📞 Secure your AMG today: 01753 439321
What Our Customers Say
⭐ “Stage 1 tuning completely transformed my E53 AMG! The power gains are incredible.” – Hamza W., London
⭐ “Stage 2 tuning with a decat exhaust made my CLS53 sound like a beast!” – Ravvi., London
Flexible Finance Options
💳 Spread the cost of your AMG tuning, performance upgrades, and security solutions over 4 monthly payments.
✅ All prices include VAT
✅ No hidden fees
✅ Simple application process
📞 Call now: 01753 439321 to book your AMG tuning today!
🚗 Unleash the true potential of your Mercedes-AMG 53-Series with Onyx Performance! 🚗
