Chelsea Truck Co. G63 AMG Tuning System – 638 HP for G-Wagon G63 AMG 2018-2024

Upgrade your 2018+ Mercedes-AMG G63 W463 with the Chelsea Truck Co. Multi-Map Tuning System, engineered to increase factory output from 571 BHP to 638 BHP—an additional 67 BHP for stronger acceleration, sharper throttle response, and improved overall driving performance. Designed specifically for the AMG G63 (463.276/463.277), this intelligent tuning system optimizes key engine parameters including boost pressure, turbo pressure, common rail pressure, intake manifold pressure, and air mass flow. Its adaptive technology continuously monitors engine load, throttle input, and driving conditions to provide smooth, progressive performance when required. Three Driving Modes Sport: Maximum responsiveness and acceleration Dynamic: Balanced performance for everyday driving Efficiency: Optimized low-end torque and earlier gear changes, with fuel savings of up to 15% under suitable conditions The system also features auto-learning technology that adapts calibration to vehicle-specific driving behavior, plus a configurable warm-up timer to help ensure enhanced performance is activated under appropriate operating conditions. Plug-and-Play Installation Designed for clean and reversible installation, the tuning system uses a vehicle-specific wiring loom and OEM-grade connectors without requiring permanent ECU modification. The system can be removed without leaving a trace and includes pre-configured calibration for the specified G63 application. Performance & Protection Integrated monitoring protocols continuously evaluate ECU signals while respecting factory operating parameters and air-fuel ratios. A high-speed processor enables rapid signal analysis, while the reinforced heat-resistant housing and automotive-grade connectors are engineered for reliable operation under demanding conditions. Key Features – 571 BHP → 638 BHP – +67 BHP power increase – Multi-map tuning technology – Sport, Dynamic & Efficiency modes – Intelligent adaptive performance control – Auto-learning calibration – Warm-up timer – Plug-and-play installation – Fully removable and reversible – OEM-grade connectors – Heat-resistant reinforced housing – Designed specifically for AMG G63 W463 The Chelsea Truck Co. G63 AMG Tuning System delivers a significant increase in performance while maintaining smooth drivability, intelligent control, and discreet installation—making it an ideal upgrade for G63 owners seeking more power, responsiveness, and versatility from their Mercedes-AMG G-Class. Notes: This part may be considered a Special Order if custom-made, low volume, or not something we generally stock. There may be a cost for Air Freight, Customs, Taxes, and Duties. Your card will not be charged during Checkout; only an Authorization will be obtained. If necessary, we will contact you with details before processing the order. Please review our Terms & Conditions before ordering.