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RennTech ECU Upgrade Mercedes-Benz CLS63 11-13

$3,495.00 Sale:$3,390.15


Model #54.218.CLS63BT

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This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

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The RennTech proprietary ECU upgrade for the Mercedes M157 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability. Their ECU tune offers the biggest performance gains on the market; increasing performance from 556 HP and 550 lb/ft torque, to an astonishing 669 HP and 734 lb/ft at the crank! This allows the CLS 63 to run the quarter mile in an impressive 11.37 seconds at 125.01 mph with 0-60 mph coming in a mere 3.4 seconds.

CLS 63 (C218) Stock Performance:

  • 473 HP @ 5500 RPM; 468 LB-FT @ 4800 RPM
  • Performance numbers measured at the wheels

  • Gains:

  • 569 HP @ 5500 RPM; 624 LB-FT @ 3800 RPM
  • Performance numbers measured at the wheels

  • Features:
    • 151 HP gain
    • 218 FT-LB gain
    • ECU upgrade
    • Mercedes-Benz, CLS63, AMG, C218, 2011-2013

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    Vehicle Engine Notes
    Mercedes-Benz CLS63 AMG

    RENNTECHs philosophy has always been to produce products without compromise, and that dedication continues to this day. True to Mercedes-Benz quality, RENNTECH cars are designed to be fast yet refined. Regardless of specification, they run faultlessly, idle smoothly, and have reliability and ease of maintenance comparable to the stock Mercedes-Benz. This attention to detail has made RENNTECH the choice of some of the most discriminating enthusiasts in the world.

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