CLS63 Biturbo ECU Tuning

The Mercedes CLS63 AMG Biturbo is a phenomenal machine, but its true supercar potential remains heavily restricted by the factory. The MBH Motorsports CLS63 Biturbo ECU Tune is a comprehensive engine management recalibration designed to unleash the immense power hidden within the M157 5.5L twin-turbo V8.

When paired with MBH Motorsports high-flow downpipes, this advanced software calibration delivers staggering, dyno-proven performance. On the dyno, this combination produces incredible gains of +140 whp and +176 wtq over the stock baseline. The result is a dramatic transformation, giving your CLS63 blistering straight-line acceleration and relentless mid-range pull. Please note: Exact performance results may vary based on environmental factors, dyno type, fuel quality, and overall engine age.

Refined Power & Engineered Reliability

Our calibrations go far beyond simply turning up the boost. We meticulously optimize fuel mapping, ignition timing, and throttle dynamics to eliminate turbo lag and provide a smooth, aggressive surge of power all the way to redline. Despite the massive increase in output, the luxury refinement of your CLS63 remains completely intact. Furthermore, all critical factory safety parameters—including knock monitoring and thermal protections—are retained to ensure long-term engine reliability.

Key Features:

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

• Huge Torque Increase: Unlocks an additional +176 wtq for aggressive, throw-you-in-your-seat acceleration.

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

• Instant Throttle Response: Eliminates factory electronic pedal lag for immediate power delivery off the line.

• Factory Safety Buffers Preserved: Retains all OEM ECU failsafes, thermal limiters, and knock monitoring parameters for total powertrain peace of mind.

• 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 CLS63 AMG (W218 Biturbo)

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.