RENNtech ECU+ Upgrade | C190 | AMG GT R | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 jaguar-f-type-r-v8-esr6617153 More power isn’t the only

More power isn’t the only performance benefit as our turbo spools quicker

Our full carbon fiber spoiler is manufactured from extremely high quality

S 550 (W221) Stock Performance:

Up to 320HP and 355 LB-FT

but with a slightly reduced peak HP and torque from our standard tune

RENNtech ECU+ Upgrade | C190 | AMG GT R | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 jaguar-f-type-r-v8-esr6617153 More power isn’t the onlyECU+ Upgrade Up to 659HP 614LB FT Gains: +50HP & +73LB 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 you choose