G63 Biturbo ECU Tune

The Mercedes G63 AMG is an absolute force on the trail and the track, but the factory engine mapping leaves massive potential trapped within its M157 5.5L twin-turbo V8. The MBH Motorsports G63 Biturbo ECU Tune is a complete engine management recalibration engineered to eliminate factory restrictions and transform your G-Wagon into a true high-performance utility vehicle.

When paired with MBH Motorsports high-flow downpipes, this advanced software calibration delivers breathtaking, dyno-proven performance. On the dyno, this aggressive combination produces staggering gains of +140 whp and +176 wtq over the stock baseline. The result is relentless mid-range torque perfect for pulling heavy loads or commanding the trails. Please note: Exact performance results may vary based on dyno type, ambient temperature, tire size, and other variables.

Refined Power & Uncompromised Reliability

Our calibrations go beyond just increasing boost pressure. We intricately optimize fuel mapping, ignition timing, and electronic throttle response to eliminate turbo lag and deliver a smooth, aggressive surge of power across the entire RPM range. Despite the massive increase in output, the luxurious manners of your G63 remain perfectly intact. To ensure complete peace of mind, all critical factory safety parameters—including thermal protections and knock monitoring—are fully retained.

Key Features:

• Massive Output Gains: Delivers dyno-proven increases of +140 whp.

• Huge Torque Increase: Unlocks an additional +176 wtq for aggressive acceleration and unmatched pulling power.

• Downpipe Synergy: Custom-tailored to maximize airflow, velocity, and performance when paired with MBH Motorsports downpipes.

• Instant Throttle Response: Eliminates factory electronic pedal lag for immediate power delivery the moment you touch the gas.

• Factory Safety Buffers Preserved: Retains all OEM ECU failsafes, thermal limiters, and knock monitoring parameters for complete engine reliability.

• Top Speed Limiter Removal: Deactivates factory speed governors for unrestricted top-end capability on closed courses.

Compatibility:

• Engine: Mercedes-AMG M157 5.5L V8 Biturbo

• Chassis: Mercedes-Benz G63 AMG (W463)

Tune Delivery Options

• Send in your ECU: Remove your ECU and ship it to MBH Motorsports. We load your tune in-house and send it back ready to reinstall.

• Remote flash device (+$199): No need to pull or ship your ECU. We ship you an OBD2 flash device and cable with step-by-step instructions, and you flash the tune to your ECU yourself, right from home. A laptop is required.

Disclaimer: For off-road racing and competition use only. This product is not intended or legal for installation on registered, licensed vehicles operated on public roads or highways.