RENNtech ECU Upgrade | S 450 | W222 | 402HP/454 LB-FT | 3.0L BiTurbo V6 | M276 | MY2018-2019 porsche-911--992---2018-present--carrera-4---cabriolet-esr2109975 CLASS C (W 204) 350

CLASS C (W 204) 350 V6 4-Matic Blue Efficiency (HP: 306 | Year: 11 > )

CLK CABRIOLET (A 209) 55 AMG [2 Filters Required] (HP: 367 | Year: 03 > 06)

With the proprietary RENNtech ECU+ Tuning the W463 - G550 4x4² gains up to +102 HP and +128 LB-FT

the transmission valve body and allows the vehicle to automatically “blip” the accelerator upon down shifts allowing for quicker gear engagement and faster lap times

Engineers have spent months developing a Slip-On exhaust system that takes the driving experience to a completely new level

RENNtech ECU Upgrade | S 450 | W222 | 402HP/454 LB-FT | 3.0L BiTurbo V6 | M276 | MY2018-2019 porsche-911--992---2018-present--carrera-4---cabriolet-esr2109975 CLASS C (W 204) 350RENNtech ECU Upgrade up to 402HP and 454 LB FT. Gains: +40HP & +70 LB FT RENNtech M276 Biturbo ECU Upgrades are TV approved! 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