RENNtech ECU+ Upgrade | C290 | GT 53 AMG EQ Boost | 485HP / 456LB-FT | 3.0L I6 Turbo EQ Boost | M256 | MY2019+

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 C290 - GT 53 AMG EQ Boost gains up to +49 HP and +46LB-FT, based on power numbers measured by RENNtech. Please note that the Mercedes M177 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the GT 53 AMG EQ Boost+ is 485 HP and 456 LB-FT.

Notes:

• We have found the M256 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 4MATIC+ vehicles.
• Numbers published by MBUSA are an average over a 750rpm range for HP and a 2,000rpm range for TQ. Power gains are calculated based on the peak stock performance measured by RENNtech.
• 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.

Performance Numbers Overview    GT 53 AMG EQ Boost (MY2019+ | C290 | M256 | 3.0L I6 Turbo EQ Boost) Stock Performance (at crank): Rated by Mercedes-Benz:                        429 HP @ 6,100rpm; 384 LB-FT @ 1,800-5,800rpm Dyno measured by RENNtech:               436 HP @ 6,000rpm; 410 LB-FT @ 4,000rpm Note: Mercedes M256 engine performance when measured on the dyno obtains higher power numbers than rated from factory. Performance numbers published by MBUSA are a calculated average within a specific rpm range, which obviously result  in lower power numbers than at the peak. HP and TQ gains calculated by RENNtech are always based on peak stock results measured by RENNtech and upgraded peak results measured by RENNtech. For transparency and comparability, RENNtech published the average stock power during the rpm range set by MBUSA and the peak stock performance    GT 53 AMG EQ Boost (MY2019+ | C290 | M256 | 3.0L I6 Turbo EQ Boost)  Modified Performance: Rated by RENNtech (peak @crank):              485 HP @ 6,150rpm; 456 LB-FT @ 4,600rpm Rated by RENNtech (peak @wheel):              417 whp @ 6,150rpm; 392 wtq @ 4,600rpm Crank Performance Numbers are calculated with a 14% Drivetrain loss on 4MATIC+ vehicles. For detailed explanation on crank HP, wheel HP, drivetrain loss, etc. please click here.

 

Dyno-Graph for Performance measured at the wheels: