RENNNtech ECU Hand Held Tuner | HHT | for Mercedes S 600 / Maybach | M277 6.0L V12 BiTurbo 2015-2017
RENNtech HHT (Hand Held Tuner) for Mercedes-Benz
Unlock the full potential of your Mercedes-Benz with the RENNtech HHT, a portable and user-friendly solution that allows for unlimited switching between stock and tuned ECU programming. With no ECU removal required, tuning your car has never been this easy or flexible.
Key Features:
Unlimited switching between stock and RENNtech-tuned ECU files.
Plug-and-play via the OBD2 port"”no need for complex installations or ECU removal.
Instant tuning: Programming takes only a few minutes, and the vehicle can be reflashed any time, as many times as you like.
Proprietary tuning software: The module stores both the original stock file and the high-performance RENNtech file.
No compromise on reliability: The tuning delivers a smooth, daily driver experience, backed by decades of ECU tuning expertise.
Performance Gains:
By optimizing air/fuel ratios, adjusting ignition timing, and modifying boost mapping for turbocharged vehicles, the RENNtech ECU software increases power and torque across the entire powerband.
For Mercedes S 600 / Maybach | W222 - M277 6.0L V12 BiTurbo:
Stock:
523 hp @ 4,900-5,500 RPM;
612 lb-ft @ 1,900-4,000 RPM
Note: Mercedes M279 engine performance when measured obtains higher numbers that rated from factory.
Modified:
582 hp @ 4,700 RPM;
752 lb-ft @ 2,750 RPM
Important Notes:
17-Digit VIN is mandatory for programming the RENNtech HHT. Ensure to send this with your order for proper configuration.
Fitment Chart:
Make
Model
Year
Mercedes
S 600
2015-2017
Mercedes
S 600 Maybach
2015-2017
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⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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