RENNtech ECU+ Upgrade | C218 | CLS 63 AMG | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014

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RENNtech ECU+ Upgrade | C218 | CLS 63 AMG | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014ECU+ Upgrade Up to 669HP 734LB FT Gains: +65HP & +88LB FT 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

Finished in a multi-layer UV protective clear coating system

The RENNtech ECU Plus Upgrade brings the GLC 43 AMG SUV up to 416 HP and 460 LB-FT | Gains: +41 HP and +62 LB-FT

Our ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 523 HP and 612 lb/ft torque

The RENNtech Hand-Held Suspension Module (HSM) is designed to work with the Mercedes Airmatic Suspension

ECU+ Upgrade | Up to 740 HP / 806 LB-FT | Gains: +87 HP & +44 LB-FT

Crank Performance Numbers are calculated with a 16% Drivetrain loss on 4MATIC+ vehicles

Increased volume

RPM Tuned: 637 HP | 625 LB FT

No drilling or modifications to the vehicle are required

455 LB-FT @3

this RENNtech carbon fiber rear wing is a must have for any AMG GT 4-Door Coupe enthusiast

+10-15 HP & +10 TQ