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RENNtech ECU Upgrade | G 65 AMG | W463 | 6.0L BiTurbo V12 | 670HP/740LB-FT | M279

RENNtech ECU Upgrade for 463 - G 65 AMG. Up to 670HP and 740LB-FT.
Gains: +35HP & +104LB-FT
SKU: ECU:54.463.G65BT
Retail price without tax: $3,495.00

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RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!

Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.

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RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! 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 vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.


Performance Numbers Overview 

G65 AMG (W463 | M279 | 6.0L V12 BiTurbo) Stock Performance (at crank):

  • Rated by Mercedes-Benz:      621 HP @ 5,00-5,300rpm; not published
  • Rated by RENNtech:               635 HP @ 5,650rpm; 636 LB-FT @ 3,050rpm
    • Note: Mercedes M279 engine performance when measured, obtains higher power numbers than rated from factory.Also, Mercedes-Benz USA did not officially publish Torque performance numbers for the W463 - G65AMG



    G65 AMG (W463 | M279 | 6.0L V12 BiTurbo) Modified Performance (at crank):

    • Rated by RENNtech:              670 HP @ 5,350rpm; 740 LB-FT @ 4,050rpm
    •                                                     536 whp @ 5,350rpm; 592 wtq @ 4,050rpm
      • Crank Performance Numbers are calculated with a 12% Drivetrain loss on the AMG GT.


Contact us

7825 SW Ellipse Way, Stuart, FL 34997
(+1) 561 - 845 7888
Mon - Fri 9am - 6pm


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7825 SW Ellipse Way - Stuart, FL 34997
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