Pay in 4 interest-free payments of $372.50 Learn more
Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
9 seconds @ 129 mph with 0-60 mph coming in 3
RENNtech M157 Biturbo ECU+ Upgrades are TÜV approved
All of our designs are unique and fully developed in house by our skilled engineers and designers
RENNtech performance software unleashes the true potential of your Mercedes
Beyond the beautifull aesthetics
RENNtech ECU+ Upgrade | C217 | S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018-2021 aero-intakes 9 seconds @ 129 mphECU+ Upgrade Up to 584 HP 642 LB FT Gains: up to +100 HP & +102 LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. 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
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