Mercedes-AMG A45 (W176) Remapping and Tuning (2013–2018)
Unlock the full potential of your Mercedes-AMG A45 (W176 – 2013 to 2018, M133 Engine) with Onyx Performance, based in Slough, Berkshire, just outside West London. Whether you’re looking for a simple power increase or a full Stage 2 upgrade, we offer expert ECU remapping, servicing, performance upgrades, and vehicle security solutions tailored specifically for your A45 AMG.
Our tuning packages are custom-designed to extract the most out of the M133 engine while maintaining reliability.
Mercedes-AMG A45 (W176) Stage 1 & Stage 2 – Power Gains
Stage 1 – Power Gains:
- Stock Power: 381HP / 475Nm
- Stage 1 Remap: 420HP / 550Nm
- Hardware Required: None
Our Stage 1 remap provides a significant boost in power and torque with no hardware modifications required. Optimised ECU calibration enhances throttle response, turbo efficiency, and acceleration, making the A45 AMG even more engaging to drive.
💡 Spark Plug and Ignition Coil Upgrade: Highly recommended for Stage 1 tuning to improve ignition performance, enhance reliability, and ensure consistency under increased power loads.
Stage 2 – Power Gains:
- Stage 2 Remap: 450HP / 600Nm*
- Hardware Required:
- Decat Downpipe or High-Flow Sports Catalyst
- Cat-Back Exhaust System (optional but highly recommended)
- Upgraded Air Filter
- Larger Intercooler
- GPF Delete (recommended for maximum sound and performance – applicable to late W176 models)
- Spark Plug and Ignition Coil Upgrade (essential for improved ignition and reliability at Stage 2)
Stage 2 tuning builds upon the Stage 1 foundation, incorporating key hardware upgrades to improve airflow, cooling, and exhaust efficiency, delivering stronger power delivery and sharper throttle response.
Looking for More Power?
For enthusiasts wanting even greater performance, we offer Stage 3 tuning packages featuring hybrid turbo upgrades, high-pressure fuel pumps, and supporting modifications.
📞 Call us on 01753 439321 to discuss Stage 3 options!
Why Choose Onyx Performance?
At Onyx Performance, we specialise in Mercedes-AMG A45 tuning and provide a range of services to ensure your AMG operates at peak performance while maintaining reliability:
✔ Rolling Road (Dyno) Testing for precise power measurement
✔ Data Logging and Diagnostics to ensure optimal engine performance
✔ Before and After Performance Printouts
✔ Engine Smoke Tests to check for Boost/Vacuum Leaks
✔ Optional Features:
- Overrun Crackles
- Speed Limiter Removal
- Catalyst Fault Code Deletes
Our expert team ensures your Mercedes-AMG A45 (W176) delivers enhanced power, torque, and response, while maintaining engine safety and drivability.
Exhaust Upgrades for Mercedes-AMG A45 (W176)
Enhance the sound and performance of your A45 AMG with a high-performance exhaust system:
🔧 Decat Downpipes – Improves turbo efficiency and exhaust flow for maximum power
🔧 High-Flow Sports Catalysts – Reduces backpressure while remaining emissions compliant
🔧 Cat-Back Exhaust Systems – Enhances exhaust tone and sound quality
🔧 GPF Delete – Recommended for maximum sound and performance (applicable to later W176 models)
🔧 Resonator Deletes – Adds a sportier, aggressive exhaust note
Pairing Stage 2 tuning with a decat downpipe or GPF delete allows for maximum power gains and an enhanced exhaust note.
Servicing and Maintenance for Mercedes-AMG A45 (W176)
Keeping your Mercedes-AMG A45 (W176) in peak condition is essential for long-term reliability. At Onyx Performance, we offer:
🔧 Routine Servicing: Oil changes, filter replacements, and essential inspections
🔧 Brake Repairs and Upgrades: OEM replacements and performance brake kits
🔧 Suspension Maintenance: Checks and optimisations for handling and ride comfort
🔧 Diagnostics and Fault Repairs: Advanced system scans to prevent potential issues
With our expertise in Mercedes-AMG models, you can trust Onyx Performance to maintain and enhance your vehicle with precision and care.
Styling, Performance Upgrades & Vehicle Security
Elevate your Mercedes-AMG A45 (W176) with custom styling, performance upgrades, and vehicle security solutions tailored to your needs:
Styling and Performance Upgrades:
🎨 Aero Kits & Carbon Fibre Components – Aggressive styling and improved aerodynamics
🎨 Lowering Springs & Coilovers – Enhanced handling and stance
🎨 Big Brake Kits – Superior stopping power for track and road use
Vehicle Security Solutions:
🔒 Autowatch Ghost Immobilisers – Prevents key cloning and unauthorised starts
🔒 MetaTrak Trackers – Live GPS tracking with mobile app integration
🔒 Scorpion Track Systems – Motion alerts and driver recognition for ultimate protection
🔒 Fleet Trackers – Ideal for multiple high-value vehicles with monitoring features
Our security systems are professionally installed to provide seamless integration and maximum protection.
What Our Customers Say
⭐ “Stage 1 completely transformed my A45! It’s quicker, smoother, and more responsive. Fantastic service from Onyx Performance!”
– Nathan B., London
⭐ “Stage 2 tuning with the decat downpipe made my A45 sound insane. The power delivery and exhaust tone are incredible!”
– Arjun K., Birmingham
Opening Hours and Contact Information
📍 Visit Us:
Location: Slough, Berkshire
🕒 Opening Hours:
- Monday–Friday: 10 AM–6 PM
- Saturday: 10 AM–3 PM
- Closed Sundays
📞 Phone: 01753 439321
✉️ Email: info@onyxperformance.co.uk
Flexible Finance Options
💳 Spread the cost of your Mercedes-AMG A45 tuning, performance upgrades, and security solutions with our flexible finance plans, available over 4 monthly payments.
✅ All prices include VAT
✅ No hidden fees
✅ Simple application process
Contact Onyx Performance
Transform your Mercedes-AMG A45 (W176, M133 Engine) today with Onyx Performance. Whether you’re looking for Stage 1 or Stage 2 remapping, performance exhaust systems, styling enhancements, or vehicle security solutions, our expert team is here to help.
📞 Call us now on 01753 439321 to book your tuning service or discuss Stage 2 and security options!
Tags:
- Mercedes-AMG A45 (W176) tuning in Slough
- AMG A45 Stage 1 remap (420HP / 550Nm)
- AMG A45 Stage 2 tuning with performance exhaust (450HP / 600Nm)
- Downpipe upgrades for Mercedes-AMG A45 (W176)
- Servicing and maintenance for AMG A45 (W176)
- GPF delete for late W176 models
- Vehicle security for AMG A45 with immobilisers and trackers
- Big brake kits for Mercedes-AMG A45 (W176)
- Custom aero and carbon fibre upgrades for A45 AMG
🚗 Unlock the true potential of your AMG today! 🚗
