RENNtech | ECU Upgrade | C217 | S 63 AMG Coupé | 669 HP / 734 TQ | 5.5L BiTurbo V8 | M157

$3,495

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Description

RENNtech M157 Biturbo ECU Upgrades are TÜV approved!

Our 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.

Our ECU tune offers the biggest performance gains on the market; increasing performance to an astonishing 669 HP and 734 lb/ft at the crank!

 

S 63 Coupé (C217) M157 Bi Turbo-Stock Performance (Non Performance Package):

536 HP @ 5500 RPM;

590 LB-FT @ 2-4500 RPM

S 63 Coupé (C217) M157 Bi Turbo-Stock Performance (With Performance Package):

563 HP @ 5500 RPM

664 LB-FT @ 2-4500 RPM

Note: We have found the new M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see slightly higher baseline numbers than claimed by the factory.

 

Modified Performance (With Performance Package):

669 HP @ 5500 RPM

734 LB-FT @ 3800 RPM

Modified Performance (Non Performance Package):

669 HP @ 5500 RPM

734 LB-FT @ 3800 RPM

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