RENNtech ECU Upgrade | E 400 | C207 | 392HP/432LB-FT | 3.0 L BiTurbo V6 | M276 | MY2015-2017 mercedes-benz-cls-class--218---2011-2014--cls63-amg-biturbo-esr5204476 SL 600 (R230) Stock Performance:

SL 600 (R230) Stock Performance:

Made out of prepreg carbon fiber closely matching the AMG weave pattern maintains a OEM Factory fit and finish

Tuning is available for Mercedes Sprinter

The RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors

A stiffer chassis means more grip

RENNtech ECU Upgrade | E 400 | C207 | 392HP/432LB-FT | 3.0 L BiTurbo V6 | M276 | MY2015-2017 mercedes-benz-cls-class--218---2011-2014--cls63-amg-biturbo-esr5204476 SL 600 (R230) Stock Performance:RENNtech ECU Upgrade for 212 E 400 BiTurbo 4 MATIC Coup. Up to 392HP and 432LB FT. Gains: +63HP & +78LB FT RENNtech M276 Biturbo ECU Upgrades are TV approved! 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