Fabspeed Motorsports | Mercedes-Benz AMG 63 4.0L V8 Bi-Turbo XperTune Performance Software

Maximize your AMG 63's potential with Fabspeed’s dyno-proven ECU upgrade, delivering 60HP and 71 lb-ft torque gains (547HP → 595HP) while preserving factory drivability.

Why Choose XperTune?
✅ Significant Power Boost – Optimizes air/fuel ratios and boost pressure for peak performance
✅ OBD-II Flash Convenience – No ECU removal required (unlike competitor bench-flash methods)
✅ Stock-Safe & Reversible – Factory settings saved for dealership visits
✅ Lifetime Warranty – Industry-leading coverage for peace of mind

Key Features:

• Fits all AMG 63 M177 V8 models: C-Class, E-Class, S-Class, GLE, GLS, GLC, SL, G-Class
• Peak Gains: 595HP/681TQ (from 547HP/664TQ stock)
• Max Gains: 60WHP/71TQ at the wheels
• Windows-compatible handheld (Mac not supported)

Tuning Process:

1. Read stock ECU data via OBD-II port
2. Email file to Fabspeed for custom tuning (1-2 day turnaround)
3. Flash optimized tune using included handheld
4. Drive with enhanced throttle response and power

Notes:

• Requires Windows PC for file transfer
• Device pairs to one vehicle permanently
• Not CARB compliant – for off-road/competition use

Compatibility:

• Mercedes-AMG 63 Models (M177 4.0L V8 Bi-Turbo):
• C-Class (W205)
• E-Class (W213)
• S-Class (W222)
• GLE-Class (W166)
• GLS-Class (X167)
• GLC-Class (C253)
• SL-Class (R231)
• G-Class (W463)

Fabspeed Motorsport | FS-MER-M177-ET