2020-2023 Mercedes GLS450 Performance ECU Tune | X167

You're looking for a performance boost in your 2020-2023 Mercedes GLS450, and we've got just the thing - our Performance ECU Tune | X167. This isn't just a simple power increase, but a complete overhaul of your vehicle's drivability.

Key Features:

• Throttle input becomes immediate
• Torque delivery is stronger and more consistent
• The powerband feels sharper and more responsive
• Downpipe readiness with check engine light suppression (for off-road use only)
• Enhanced exhaust acoustics with extended or adjustable burble
• Factory speed governor removal for unrestricted performance
• Octane-specific calibration tailored to your fuel quality
• Cold start behavior fully configurable (On/Off)
• 100% Reversible, always able to go back to stock at any time
• Stage 1 (Factory Downpipes) & Stage 2 (EPC Performance Downpipes) Tuning available
• Horsepower Gain: 70 HP Increase
• Torque Gain: 70 TQ Increase

Fitment:

Fits 2020 2021 2022 2023 X167 W167 Mercedes GLS450 3.0L Turbo I6 M256 Engine