5 Best AMG GT R aftermarket upgrades
The Mercedes-AMG GT R is a powerhouse of engineering, combining a 4.0-litre twin-turbo V8 engine with precision handling and an aggressive design. While the AMG GT R is already track ready and exhilarating to drive, aftermarket upgrades can take this beast of a car to the next level. If you are looking to increase performance or aesthetics of your car, choosing the right modifications will transform your AMG GT R into a high performance machine.
In this post we will explore the 5 best aftermarket upgrades for the AMG GT R that provide noticeable improvements in performance and style.
1. Performance Exhaust Systems
One of the most popular and effective upgrades for the AMG GT R is a performance exhaust system.
Benefits of Upgrading Your Exhaust System:
- Increased Horsepower and Torque: A high flow aftermarket exhaust reduces backpressure, allowing the engine to breathe more efficiently and generate even more power.
- Enhanced Engine Sound: Enjoy a deeper and more aggressive exhaust tone that matches the AMG GT R’s performance character.
- Weight Reduction: Many aftermarket exhausts are made from lightweight materials such as titanium or carbon fiber which reduces overall vehicle weight.
Popular brands include Akrapovič, Capristo and Armytrix, all of which offer systems engineered specifically for the AMG GT R. An upgraded exhaust not only improves performance but also makes your AMG GT R sound as thrilling as it drives.
| Feature | Stock AMG GT R Exhaust | Akrapovic Evolution Line Titanium Exhaust |
|---|---|---|
| Material | Stainless steel with AMG valve system | Lightweight titanium with carbon fibre tailpipes |
| Weight | 21-22 kg (varies by trim) | 35-40% lighter (saves around 12-14 kg) |
| Power (bhp) | 577 bhp (430 kW) | +10-15 bhp (around 590 bhp with ECU tune) |
| Torque (Nm) | 700 Nm (516 lb-ft) | +10-20 Nm (with freer flow and ECU tune) |
2. ECU Tuning and Performance Chips
The engine control unit (ECU) is the brain of your AMG GT R’s V8 engine. Additional horsepower, torque and responsiveness can be unlocked by tuning the ECU.
Why ECU Tuning Matters:
- Optimized Engine Performance: Adjusts fuel delivery, boost pressure and ignition timing for peak performance.
- Improved Throttle Response: Makes acceleration feel sharper and more immediate.
- Customizable Driving Experience: Choose tunes for street driving, track days or high-performance scenarios.
Options range from plug and play performance chips to full custom ECU remaps. While the gains can be substantial, it is important to use reputable tuners such as Wrench Studios to ensure the remap is carried out safely. Also, you will need to consider potential warranty implications when tuning the ECU.
| Feature | Stock AMG GT R | With ECU Tune |
|---|---|---|
| Power (bhp) | 577 bhp | 650-670 bhp (depending on tune) |
| Torque (Nm) | 700 Nm (516 lb-ft) | 800-850 Nm (590-627 lb-ft) |
| 0-62 mph (0-100 km/h) | 3.6 seconds | 3.2 seconds |
| Top Speed | 198 mph | 205-210 mph (limiter removed) |
3. Suspension Upgrades
Even though the AMG GT R has an advanced factory suspension, aftermarket modifications can further refine handling and cornering precision. Aftermarket coilovers, adjustable dampers and upgraded sway bars reduce body roll which improves cornering precision. With high-quality suspension upgrades, the AMG GT R becomes even more responsive and capable of reaching its full performance potential.
Suspension Options:
- Coilovers and Adjustable Dampers: Allow you to customize ride height and stiffness for optimal track or street performance.
- Sway Bars: Reduce body roll during aggressive cornering for improved stability.
- Fine-Tuning: Adapt suspension settings based on driving conditions to balance comfort and performance.
Leading brands such as KW Suspensions and Bilstein offer solutions designed specifically for the AMG GT R, letting you tailor the driving experience to your personal preferences.
4. Lightweight Wheels and High-Performance Tires
Reducing unsprung weight and improving traction is critical for maximising performance. Upgrading to lightweight wheels and high performance tires can make a dramatic difference.
Benefits:
- Improved Acceleration and Handling: Lightweight wheels reduce rotational mass, making acceleration and steering more responsive.
- Enhanced Grip and Braking: High performance tires improve traction during spirited driving and reduce stopping distances.
- Aesthetic Appeal: Premium wheel designs enhance the AMG GT R’s aggressive look.
Popular setups include HRE wheels and Vossen wheels paired with Michelin Pilot Sport Cup 2 or Pirelli P Zero Trofeo R tires. This upgrade not only boosts performance but also gives the car a more aggressive stance.

5. Brake System Upgrades
As performance increases, stopping power becomes even more critical. Upgrading the brake system ensures that your AMG GT R can handle higher speeds safely and consistently.
Brake Upgrade Benefits:
- Better Stopping Power: Upgraded calipers, rotors and pads improve braking performance under stress.
- Heat Dissipation: High-performance brakes resist fade during track sessions or spirited driving.
- Material Options: Carbon-ceramic brakes offer superior performance and longevity, while upgraded steel brakes provide a more cost-effective solution.
Brands such as Brembo and AP Racing provide kits specifically for the AMG GT R which enhance both safety and performance. High quality brakes are essential to complement engine and suspension upgrades.
Conclusion
As previously mentioned, AMG GT R aftermarket upgrades such as performance exhausts, ECU tuning, suspension enhancements, lightweight wheels, and high-performance brakes can dramatically improve driving performance and aesthetics.
When selecting aftermarket upgrades you need to consider if your driving goals and whether track-focused, street-oriented or show quality. Prioritize modifications that complement each other to maintain balance and safety.
With the right combination of upgrades, your AMG GT R can achieve its full potential. This will deliver an unparalleled driving experience that matches its aggressive design and thrilling performance.