RENNtech ECU+ Upgrade | W221 | S 63 AMG | Sedan | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2011-13

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RENNtech ECU+ Upgrade | W221 | S 63 AMG | Sedan | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2011-13ECU+ Upgrade Up to 669HP 734TQ Gains: +106 HP +140TQ 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

SLS AMG GT (C197) Stock Performance:

354 lb-ft @ 1

Range Rover (L405/LG) 2013 - 2021

E450 BiTurbo Coupe | MY2017+

87 sec 120 mph W212 - E63 AMG S 4MATIC Sedan R2 Pkg w/Launch Control 3

86 sec 115

To create prepreg

Bumperette Delete for 2021 AMG GT Black Series

NOTE: Due to the increased size of airboxes the OEM engine cover must be removed

GLC 43 AMG SUV (X253 | M276 | 3

E63 AMG 4-MATIC+ Sedan | MY2018+

This Software update delivers up to 10 HP and 99 LB-FT more than the previous version