RENNtech ECU Upgrade | E 400 | W212 | 392HP/432LB-FT | 3.0 L BiTurbo V6 | M276 | MY2014-2016 porsche-911--992---2018-present--carrera-4s---cabriolet-esr9749945 Our intermediate level ECU upgrade

Our intermediate level ECU upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability

Rear: Style: RTS Size: 19" x 10

CLASS S LONG (W 221) 600 V12 [2 Filters Required] (HP: 517 | Year: 06 >)

Porsche Cayenne GTS (9PA)

M176 | 177 | 178

RENNtech ECU Upgrade | E 400 | W212 | 392HP/432LB-FT | 3.0 L BiTurbo V6 | M276 | MY2014-2016 porsche-911--992---2018-present--carrera-4s---cabriolet-esr9749945 Our intermediate level ECU upgradeRENNtech ECU Upgrade for 212 E 400 BiTurbo 4 MATIC. Up to 392HP and 432LB FT. Gains: +63HP & +78LB 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