RENNtech ECU+ Upgrade | W222 | Mercedes-Maybach S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018+

RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.

RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.

With the proprietary RENNtech ECU Tuning the W222 - Mercedes-Maybach S560 gains up to +100 HP and +102 LB-FT, based on power numbers measured by RENNtech. Please note that the Mercedes M176 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the S560 is 584 HP and 642 LB-FT.

50-State Street Legal RENNtech HHT The HHT for Mercedes-Benz and Mercedes-AMG, 4.0 L BiTurbo V8, M176 | 177 | 178, engines is EPA Emissions compliant and street legal in all 50 States. This product conforms to EPA Emission Standards and does not reduce effectiveness of your vehicles original pollution control systems. A CARB Executive Order was granted to the RENNtech HHT based on emission test results in the modified configuration, an examination of the On-Board Diagnostic II (OBD II) system, and an engineering evaluation.

Notes:

• We have found the M176 engine stock performance numbers vary from the baseline figures claimed by Mercedes-Benz. We typically see higher baseline numbers than claimed by the factory.
• Power gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles.
• Our numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.
• States known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.

Dyno-Graph for Performance measured at the wheels: