RENNtech ECU Upgrade | S 650 Maybach | W222 | 670HP/840LB-FT | 6.0L BiTurbo V12 | M279 | MY2018-2020 mercedes-benz-cl-class--216---2007-2014--cl550-biturbo-esr1724818 066 HP and 831 LB-FT

066 HP and 831 LB-FT @ crank with 93 Octane Fuel

The rear spoiler integrates seamlessly into the rear of the vehicle and offers a dramatic

448whp @ 5

Please note: On the SL 550 (R231) the ABC suspension system is optional equipment from the factory

RENNtech ECU Upgrade | S 650 Maybach | W222 | 670HP/840LB-FT | 6.0L BiTurbo V12 | M279 | MY2018-2020 mercedes-benz-cl-class--216---2007-2014--cl550-biturbo-esr1724818 066 HP and 831 LB-FTRENNtech ECU Upgrade for 222 S 650 Maybach. Up to 670HP and 840LB FT. Gains: +49HP & +102LB FT 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