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RENNtech ECU+ Upgrade – Mercedes E63 S AMG 4MATIC+

  • RENNtech_213-E63S_ECU+_web
  • RENNtech_213-E63S_ECU+_web


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.

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Mercedes-Benz / E63 S AMG 4MATIC+ (W213, 2017-present)
10 lbs
15 x 15 x 15 in


MFG Part:





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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 W213 – E63 AMG S 4MATIC+ gains up to +82 HP and +81LB-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 E63 AMG S 4MATIC+ is 773 HP and 778 LB-FT.


  • We have found the M177 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. 


Performance Tests:

Vehicle Upgrades 0-60mph 0-100mph 60-130mph 1/4 Mile ET Trap Speed
W213 – E63 AMG S Sedan Stock w/o Launch Control 3.63 sec 7.96 sec 9.40 sec 11.76 sec 122.11 mph
W213 – E63 AMG S Sedan Stock w/Launch Control 3.1 sec 7.30 sec 9.13 sec 11.24 sec 124.85 mph
W213 – E63 AMG S Sedan Rt ECU Upgrade w/Launch Control 2.79 sec 6.61 sec 8.27 sec 10.88 sec 128.72 mph
W213 – E63 AMG S Sedan R2 Package w/Launch Control, PBIR Dragstrip 2.66 sec 6.13 sec 7.43 sec 10.436 sec 133.45 mph

*If not otherwise noted, performed on non-prepped asphalt and with OEM, Street-Legal and/or Non-Performance tires. Data measured with Racelogic Performance Box.

Performance Numbers Overview

E63 AMG S 4MATIC+ (MY2018+ | W213 | M177 | 4.0L V8 BiTurbo) Stock Performance (at crank):

  • Rated by Mercedes-Benz (avg.):                        603 HP @ 5,750-6,500rpm; 627 LB-FT @ 2,500-4,500rpm
  • Dyno measured by RENNtech (avg.):                685 HP @ 5,750-6,500rpm; 667 LB-FT @ 2,500-4,500rpm
  • Dyno measured by RENNtech (peak):               691 HP @ 6,200rpm; 694 LB-FT @ 3,400rpm
    • Note: Mercedes M177 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

E63 AMG S 4MATIC+ (MY2018+ | W213 | M177 | 4.0L V8 BiTurbo) Modified Performance (at crank):

  • Rated by RENNtech (peak @crank):              773 HP @ 5,600rpm; 778 LB-FT @ 4,400rpm
  • Rated by RENNtech (peak @wheel):              665 whp @ 5,600rpm; 668 wtq @ 4,400rpm
    • Crank Performance Numbers are calculated with a 14% Drivetrain loss on 4MATIC+ vehicles.

Special orders welcome. Please contact us.

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