RENNtech ECU+ Upgrade | W222 | S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018-2020 mclaren-600-lt-esr8962987 depending on level of modification

depending on level of modification

414 LB-FT @ 3

CLASS S LONG (V 220) 430 V8 [7 gear] [2 Filters Required] (HP: 279 | Year: 03 > 05)

AMG GT S 4

ECU+ Upgrade | Up to 601HP / 582LB-FT | Gains: +65HP & +87LB-FT

RENNtech ECU+ Upgrade | W222 | S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018-2020 mclaren-600-lt-esr8962987 depending on level of modificationECU+ 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