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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
Mercedes 400 | M276 | 3
9 seconds @ 129 mph with 0-60 mph coming in 3
All of our designs are unique and fully developed in house by our skilled engineers and designers
RENNtech M157 Biturbo ECU+ Upgrades are TÜV approved
RENNtech ECU+ Upgrade | C217 | S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018-2021 aero-intakes Mercedes 400 | M276 |ECU+ 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
