Engine Performance

Mercedes G-Class Engine Performance Upgrades | G1monarch

Unlock your G-Wagen’s power with precision-engineered Mercedes G-Class performance upgrades from leading brands. Specializing in ECU tuning, high-performance exhaust systems, and cold air intakes, we enhance horsepower, torque, and throttle response while maintaining OEM reliability.

Key Upgrades

• ECU Tuning & Remapping: Optimize power and efficiency with customizable ECU remaps (805+ HP / 1,020 Nm torque) from trusted brands like RENNtech and performmaster.
• Performance Exhaust Systems: Boost horsepower and add an AMG GT-R-inspired sound with valved cat-back systems from Fi EXHAUST and Akrapovic.
• Cold Air Intakes: Improve engine breathing for smoother acceleration and increased efficiency.
• Lightweight Components: Reduce weight with ceramic-coated downpipes and alloy parts for better heat management.

Why Choose G1monarch?

• OEM+ Integration: Preserve factory reliability with TUV-certified components and no-warning-light designs.
• Global Readiness: Systems tested for extreme conditions, from alpine trails to high-speed runs.
• Expert Curation: Partnering with top-tier brands like Brabus and AMG for proven performance