RENNtech ECU+ Upgrade | C190 | AMG GT S | 601HP/582LB-FT | 4.0L V8 BiTurbo | M178 | MY2018+ audi-rs4--b7---2006-2008--4-2-v8-fsi-esr4648829 The maximum power number reached

The maximum power number reached with the RENNtech ECU Upgrade for the G63 AMG is 731 HP and 786 LB-FT

We typically see higher baseline numbers than claimed by the factory

- Audi RSQ8 (4M) 2019+

tight fiber weave that not only looks amazing

RENNtech tuning products are certified to meet CARB standards in all 50 States

RENNtech ECU+ Upgrade | C190 | AMG GT S | 601HP/582LB-FT | 4.0L V8 BiTurbo | M178 | MY2018+ audi-rs4--b7---2006-2008--4-2-v8-fsi-esr4648829 The maximum power number reachedECU+ Upgrade Up to 601HP 582LB FT Gains: +65HP & +87LB 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